Check it out, here's every appearance Harley has made throughout comics and cartoons! I didn't keep track in my absence so the majority of this list has been reproduced with kind permission by the unbelievably cool Jeremy from Collecting Harley - a fabulous site! However, I have been maintaining the most recent appearances independently. I've listed comic book appearances by title!

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HARLEY'S MAINSTREAM COMIC APPEARANCES

Harley Quinn
Harley Quinn #1 (October, 2000): "An Harley Quinn Romance"
Harley Quinn #2 (November, 2000): "A Heart Broken in Two"
Harley Quinn #3 (December, 2000): "Welcome to the Party!"
Harley Quinn #4 (January, 2001): "The Wilde Life"
Harley Quinn #5 (Febuary, 2001): "Larger Than Life"
Harley Quinn #6 (March, 2001): "Who Wants To Rob A Millionaire?"
Harley Quinn #7 (April, 2001): "Gods And Mobsters"
Harley Quinn #8 (May, 2001): "Be Cruel 2 Your School"
Harley Quinn #9 (June, 2001): "Quintessence Part 1: Shop 'Til You're Dropped!"
Harley Quinn #10 (July 2001): "Quintessence Part 2: Brilliant Mistake"
Harley Quinn #11 (August 2001): "Quintessence Part 3: The Girl is Bats!"
Harley Quinn #12 (September, 2001): "Quintessence Conclusion: A Date Which Will Live In Infamy!"
Harley Quinn #13 (October, 2001): "Night and Day"
Harley Quinn #14 (November, 2001): "Bright Lights, Big City Part 1: Welcome to Metropolis"
Harley Quinn #15 (December, 2001): "Metropolis Mailbag"
Harley Quinn #16 (January, 2002): "Both Sides Now" 
Harley Quinn #17 (February, 2002): "#1 Am The Loneliest Number"
Harley Quinn #18 (March, 2002): "The Bride of Bizarro!"
Harley Quinn #19 (April, 2002): "Going Out With A Bang!"
Harley Quinn #20 (May, 2002): "Wouldn't Be Caught Dead There"
Harley Quinn #21 (June, 2002): "Hell and Highwater!"
Harley Quinn #22 (July, 2002): "The Ballad of Harley Quinn"
Harley Quinn #23 (August, 2002): "Men Are From Mars -- Woman Are From Hell!" 
Harley Quinn #24 (September, 2002): "I Ain't Got No Body--!"
Harley Quinn #25 (October, 2002): "Once More, With Feeling!"
Harley Quinn #26 (November, 2002): "Vengeance Unlimited, Part One"
Harley Quinn #27 (December, 2002): "Vengeance Unlimited, Part Two"
Harley Quinn #28 (January, 2003): "Vengeance Unlimited, Part Three"
Harley Quinn #29 (February, 2003): "Vengeance Unlimited, Part Four"
Harley Quinn #30 (March, 2003): "Vengeance Unlimited, Part Five"
Harley Quinn #31 (April, 2003): "Who Steals From A Thief?"
Harley Quinn #32 (May, 2003): "The Year of the Rat"
Harley Quinn #33 (June, 2003): "Behind Blue Eyes, Part One"
Harley Quinn #34 (July, 2003): "Behind Blue Eyes, Part Two"
Harley Quinn #35 (August, 2003): "Behind Blue Eyes, Part Three"
Harley Quinn #36 (September, 2003): "Behind Blue Eyes, Part Four"
Harley Quinn #37 (October, 2003): "Behind Blue Eyes, Part Five"
Harley Quinn #38 (November, 2003): "Cuckoo For Incarceration"

Batman
Batman Chronicles Gallery #1 (1996) [Note: Pin-Up] 
Batman: No Man's Land Gallery #1 (May, 1999) [Note: Pin-Up]
Batman #570 (August, 1999): "The Code, Part One: Breakin' the Law"
Batman: No Man's Land Secret Files #1 (October, 1999) [Note: Profile Appearance Only]
Batman #573 (November, 1999): "Shellgame, Part One: Gambits"
Batman #574 (December, 1999): "Endgame, Part Two"
Batman #612 (February, 2003): "Hush, Chapter Five: The Battle" [Cameo]
Batman #613 (March, 2003): "Hush, Chapter Six: The Opera"
Batman #614 (April, 2003): "Hush, Chapter Seven: The Joke"
Batman #615 (May, 2003): "Hush, Chapter Eight: The Dead" [Hologram on Batcomputer]
Batman #619 (September, 2003): "Hush, Chapter Twelve: The End" ["Villains" Cover]
Batman #663 (March, 2007): "The Clown at Midnight"
Batman #686 (February, 2009): "Whatever Happened to the Caped Crusader?, Part 1 of 2: The Beginning of the End"
Batman Annual #27 (2009): "Off Rogue Racing"

Detective
Detective Comics #737 (August, 1999): "The Code, Part Two"
Detective Comics #837 (October, 2007): "Honor Among Thieves"
Detective Comics #740 (December, 1999): "Shellgame, Part 2"
Detective Comics #741 (December, 1999): "Endgame, Part Three: Sleep in Heavenly Peace..."
Detective Comics #789 (December, 2003): "The Tailor, Part 1" [Note: Costume Cameo]
Detective Comics #821 (July, 2006): "The Beautiful People" [Cameo]
Detective Comics #823 (August, 2007): "Stalked" [Cameo]
Detective Comics #831 (April, 2007): "Kind of Like Family"
Detective Comics #837 (October, 2007): "Honor Among Thieves"
Detective Comics #850 (November, 2008): "Heart of Hush: The Demon in the Mirror" [Cameo]
Detective Comics #851 (December, 2008): "Last Days of Gotham" [Cover Only]
Detective Comics #853 (April, 2009): "Whatever Happened to the Caped Crusader?, Part 2 of 2"
Detective Comics Annual #11 (2009): "Question and Answer"

Superman
Action Comics #765 (Febuary, 2000): "A Clown Comes To Metropolis"
Superman: Emperor Joker #1 (August, 2000): "It's a Joker's World, Baby, We Just Live In It!"
Superman #161 (August, 2000): "You Say You Want A Revolution?"
Adventures of Superman #583 (August, 2000): "Life Is But A (Very Bad) Dream"
Superman: Man of Steel #105 (August, 2000): "All the World His Stage"
Action Comics #770 (August, 2000): "He Who Laughs Last"
Adventures of Superman #600 (January, 2002): "Superman: The Dailies 2002, The Daily Planet" [Note: Back-up Story]

Wonder Woman
Wonder Woman Vol. 2 #164 (November, 2000): "Gods of Gotham, Part 1: Discord"
Wonder Woman Vol. 2 #165 (December, 2000): "Gods of Gotham, Part Two: Avatars"
Wonder Woman Vol. 2 #166 (January, 2001): "Gods of Gotham, Part Three: Fear"
Wonder Woman #167 (Febuary, 2001): "Gods of Gotham, Part Four: Faith"

Catwoman
Catwoman Vol. 1 #81 (April, 2000): "It's a Wonderful Life" [Note: Behind the Scenes]
Catwoman Vol. 1 #82 (May, 2000): "Cat Outta Hell"
Catwoman Vol. 1 #83 (June, 2000): "Scavenger Hunt"
Catwoman Vol. 1 #84 (July, 2000): "The Lesser of Two Evils"
Catwoman #89 (December, 2000): "Always Leave 'Em Laughing"
Catwoman #69 (July, 2007): "Catwoman Dies Conclusion" [Note: Cover Only]
Catwoman Vol. 2 #83 (January, 2010): "Night and the City" [Note: Blackest Night Tie-In]
Bruce Wayne: The Road Home Catwoman #1 (December, 2010): "Lifting the Vale"

Birds of Prey
Birds of Prey #27 (January, 2001): "Officer Down, Part 3: Armed and Dangerous"
Birds of Prey #105 (April, 2007): "Whitewater, Part Two: Permafrost"
Birds of Prey #106 (May, 2007): "Whitewater, Part Three: Storm Front"
Birds of Prey #107 (June, 2007): "Whitewater, Part Four: A Heart Encased in Glass"
Birds of Prey #108 (July, 2007): "Whitewater, Epilogue: Swan Song"

Countdown
Countdown to Final Crisis #43 (July, 2007): "The Funeral"
Countdown to Final Crisis #42 (July, 2007): "Shock To The System"
Catwoman to Final Crisis #69 (July, 2007): "Catwoman Dies Conclusion" [Note: Cover Only]
Countdown to Final Crisis #41 (July, 2007): "Another Fine Mess"
Countdown to Final Crisis #40 (July, 2007): "Small Wonders"
Countdown to Final Crisis #39 (August, 2007): "Do Not Pass Go"
Countdown to Final Crisis #37 (August, 2007): "Forbidden Fruit" [Note: Also Has Cameo in Back-Up Story]
Countdown to Final Crisis #35 (August, 2007): "Girls Just Wanna Have Fun"
Countdown to Final Crisis #34 (September, 2007): "Searching For Answers"
Countdown to Final Crisis #31 (September, 2007): "New Frontiers"
Countdown to Final Crisis #30 (October, 2007): "Family Feud"
Countdown to Final Crisis #29 (October, 2007): "Another Country Heard From"
Countdown to Final Crisis #27(October, 2007): "Disasters Great & Otherwise"
Countdown Presents: The Search for Ray Palmer - Crime Society #1 (October, 2007): "The Jokester's Last Laugh" [Note: Earth 3 of Multiverse]
Countdown to Final Crisis #21 (December, 2007): "Down and Out... And Beyond"
Countdown to Final Crisis #19 (December, 2007): "Season's Beatings"
Countdown to Final Crisis #18 (December, 2007): "Safe House" [Note: Earth 51 of Multiverse]
Countdown to Final Crisis #16 (January, 2008): "What Price Paradise"
Countdown to Final Crisis #15 (January, 2008): "Splitting the Atom"
Countdown to Final Crisis #12 (February, 2008): "Come Together"
Countdown to Final Crisis #11 (February, 2008)
Countdown to Final Crisis #10 (March, 2008) "The Gods Must Be Crazy"[Also contains a two-page origin by Scott Beatty and Bruce Timm]
Countdown to Final Crisis #9 (February, 2008): "Pay the Piper"
Countdown to Final Crisis #8 (March, 2008): "Homeward Bound
Countdown to Final Crisis #7 (March, 2008): "Gone Tomorrow
Countdown to Final Crisis #6 (March, 2008): "Outbreak
Countdown to Final Crisis #4 (April, 2008): "The Beginning of the End
Countdown to Final Crisis #1 (April, 2008): "Loose Ends"

Battle for the Cowl
Batman: Battle For The Cowl The Underground #1 (April, 2009)
Batman: Battle For The Cowl #3 (May, 2009)
Batman: Streets of Gotham #1 (June, 2009)

Gotham City Sirens
Gotham City Sirens #1 (June, 2009): "Union"
Gotham City Sirens #2 (July, 2009): "Girls Talk" 
Gotham City Sirens #3 (August, 2009): "Riddle Me This!" [Note: Cameo] 
Gotham City Sirens #4 (September 2009): 
Gotham City Sirens #5(October 2009): Out of the Past
Gotham City Sirens #6(November 2009)
Gotham City Sirens #7(December 2009): "Holiday Story"
Gotham City Sirens #8(January 2010)
Gotham City Sirens #9(February 2010): "Pieces of the Puzzle"
Gotham City Sirens #10(March 2010): "Taking Sides"
Gotham City Sirens #11(April 2010): "On the Job"
Gotham City Sirens #12(May 2010): "Sister Zero Part 1"
Gotham City Sirens #13(June 2010): "Sister Zero Part 2"
Gotham City Sirens #14(July 2010): "Strange Fruit Part 1"
Gotham City Sirens #15(Auust 2010): "Strange Fruit Part 2"
Gotham City Sirens #16(September 2010): "Beginning Again"
Gotham City Sirens #17(October 2010): "Ending Again"
Gotham City Sirens #18 (November 2010): "YROTSIH"
Gotham City Sirens #19 (December 2010): "Behind the Bat, Behind the Clown"
Gotham City Sirens #20 (January 2011): "Hell Hath No Fury Part 1"
Gotham City Sirens #21 (February 2011): "Hell Hath No Fury Part 2"
Gotham City Sirens #23 (April 2011): "(Fri)Ends Part I"
Gotham City Sirens #24 (April 2011): "(Fri)Ends Part II"

Sucide Squad
Suicide Squad #1 (November 2011): "Kicked in the Teeth"
Suicide Squad #2 (December  2011): "When the Levee Breaks"
Suicide Squad #3 (January 2012): "Last Chance"
Suicide Squad #4 (February 2012): "Bad Company"
Suicide Squad #5 (March 2012): "Abandon All Hope"
Suicide Squad #6 (April 2011): "Hunt for Harley Quinn Part I"

Mini-Series
Joker/Mask #1 (of 4) (May, 2000) [Note: Crossover w/ Dark Horse Comics]
Joker/Mask #2 (of 4) (June, 2000) [Note: Crossover w/ Dark Horse Comics]
Joker/Mask #3 (of 4) (July, 2000) [Note: Crossover w/ Dark Horse Comics]
Joker/Mask #4 (of 4) (August, 2000) [Note: Crossover w/ Dark Horse Comics]
Joker: Last Laugh Secret Files #1 (October, 2001): "Touched", "Joker Fun Facts" 
The Joker: Last Laugh #3 (October, 2001): "Part Three: Lunatic Fringe" 
The Joker: Last Laugh #4 (October, 2001): "Part Four: Everyone Knows This Is Nowhere" 
The Joker: Last Laugh #5 (October, 2001): "Part Five: Mad, Mad World" 
Arkham City #1 (July, 2011): "Ruins"
Arkham City #2 (August, 2011): "Breaking Grounds"
DC Universe Online Legends #7 (July 2011):
Arkham City #3 (September, 2011): "Choosing Sides"
Arkham City #4 (October, 2011): "A Night on the Town"
Arkham City #5 (November, 2011): "Exposure"
Arkham Unhinged #7 (February 2012) "Ruffled Feathers part 1"
Arkham Unhinged #8 (February 2012): "Ruffled Feathers part 2"
Arkham Unhinged #9 (February 2012): "Ruffled Feathers part 3"
Arkham Unhinged #17 (February 2012): 

One-Shots/Graphic Novels
Batman: Harley Quinn #1 (August, 1999) [Note: First Canon Appearence]
Harley Quinn: Our Worlds At War #1 (August 2001): "Our Fighting Forces"
Harley & Ivy: Love on the Lam (September, 2001): "Love on the Lam"
Batman/Danger Girl: (December 2004) Dangerous Connections
Batman/The Spirit (January, 2007)
Joker (October, 2008)
Arkham Asylum: Madness (June, 2010)

Other Titles
Batman: Shadow of the Bat #93 (November, 1999): "Assembly Redux"
Azrael: Agent of the Bat #60 (November, 1999): "Evacuation"
Batman: Legends of the Dark Knight #126 (December, 1999): "Endgame, Part One: Silent Night, All is Calm, All is Bright..."
Nightwing #52 (December, 2000): "Modern Romance" [Note: Cameo Appearence]
Justice Leagues: Justice League of Amazons #1 (January, 2001): "Jungle Work"
Batman Gotham Knights #14 (Febuary, 2001): "The Bet"
Batman Gotham Knights #30 (June, 2001): "Punchline"
Infinite Crisis Special: Villains United #1 (April, 2005): "A Hero Dies But One " [Cameo]
Infinite Crisis #7 (April, 2005): "Finale" [Note: Cover Only]
Superman/Batman #19 (April, 2005): "The New Adventures of Supergirl, the Girl of Steel"
Supergirl #0 (August, 2005): "The New Adventures of Supergirl, the Girl of Steel" [Note: Reprint]
Batman Confidential #7 (July, 2007): "Lovers & Madmen, Part One: It's Funny"
Secret Six #6: (February, 2009)"Origins & Omens" [Cameo in Back-Up Story] 
Batman: Arkham Asylum (September, 2009): "The Road to Arkham"
DCU Halloween Special 2009 (October, 2009): "To the Finish Line!" [Note: Cameo]
Batman: Streets of Gotham #5 (October, 2009) "Your Move Sweetheart" [Note: Cameo in back-up story flashback]
Joker's Asylum: Harley Quinn (June, 2010) 
Titans #30 (December, 2010) 
Batman: Streets of Gotham #17 (December, 2011) "The House of Hush Chapter Two: Reunions" 

HARLEY'S ANIMATED UNIVERSE COMIC APPEARANCES

The Batman Adventures (vol 1)
The Batman Adventures #12 (September, 1993): "Girl's Night Out"
The Batman Adventures #28 (December, 1994): "Tweleve Days of Madness"

The Batman and Robin Adventures
Batman & Robin Adventures #1 (November, 1995): "Two-Timer"
Batman & Robin Adventures #8 (July, 1996): "Harley and Ivy and... Robin?"
Batman & Robin Adventures #18 (May, 1997): "Joker's Last Laugh!"

Gotham Adventures
Batman: Gotham Adventures #10 (March, 1999): "Mightier Than the Sword"
Batman: Gotham Adventures #14 (July, 1999): "Masks of Love: A Harley Quinn Romance"
Batman: Gotham Adventures #29 (October, 2000): "Six Hours To Kill"
Batman: Gotham Adventures #30 (November, 2000): "Deals"
Batman: Gotham Adventures #43 (December, 2001): "Turnabout"
Batman: Gotham Adventures #45 (Febuary, 2002): "Running the Asylum"
Batman: Gotham Adventures #51 (August, 2002): "Early Thaw"
Batman: Gotham Adventures #53 (October, 2002): "Green Mind"

The Batman Adventures (vol 2)
Batman Adventures #1 (April, 2003): "No Asylum"
Batman Adventures #3 (June, 2003): "My Boy-friend's Back", "Breathing Room"
Batman Adventures #9 (December, 2003): "The Couch" [Note: Back-up Story]
Batman Adventures #16 (July, 2004): "The Bride of the Joker" 

Gotham Girls
Gotham Girls #1 (October, 2002): "Cat's Paw"
Gotham Girls #2 (November, 2002): "Ivy League"
Gotham Girls #3 (December, 2002): "Harlequinade"
Gotham Girls #4 (January, 2003): "I Carry A Badge"
Gotham Girls #5 (February, 2003): "Bat Attitude"

Justice League
Justice League Adventures #13 (January, 2003): "Local Hero"
Justice League Unlimited #41 (March, 2008): "The Anniversary Party"
DC Super-Friends #4 (August, 2008): "April Fools"

Batman Strikes!
The Batman Strikes! #35 (July, 2007): "The Crown Prince of Late Night" 
The Batman Strikes! #39 (November, 2007) [Note: Cover Appearance]
The Batman Strikes #41 (January, 2008): "Girls Just Wanna Have Fun" 
The Batman Strikes! #43(March, 2008): "Grounded"
The Batman Strikes! #45(May, 2008): "Gotham Girls: Honour Amongst Thieves"
The Batman Strikes! #47 (September, 2008):  "20 Minutes"

Mini-Series and One-Shots
The Batman Adventures Annual #1 (1994): "Laughter After Midnight"
The Batman Adventures: Mad Love #1 (Febuary, 1994): "Mad Love"
The Batman Adventures Holdiday Special #1 (January, 1995): "The Harley and the Ivy"
Batgirl Adventures #1 (Febuary, 1998): "Oy to the World"
Batman & Superman: World's Finest #1 (November, 1998): "World's Finest"
Batman Beyond: Return of the Joker Comic Adaptation (December, 2000)
Batman Harley & Ivy #1 (April, 2004): "Bosom Buddies " 
Batman Harley & Ivy #2 (May, 2004): "Jungle Fever!" 
Batman Harley & Ivy #3 (June, 2004): "Hooray for Harleywood!" 

DC COMICS TRADE PAPER/HARDBACK APPEARANCES 

Batman No Man's Land TP Vol. 4 (December, 2000)
Batman No Man's Land TP Vol. 5 (March, 2001)
Joker/Mask TP (April, 2001) [Note: Crossover w/ Dark Horse Comics]
Wonder Woman: Gods of Gotham Collection (May, 2001)
Batman: Officer Down TP (August, 2001)
Superman: 'Til Death Do Us Part (December, 2001)
Wonder Woman: Paradise Lost (January, 2002)
Batman: Black and White Vol. 2 (August, 2002)
Batman: Hush Vol. 2 (October, 2004)
Supergirl: Power TP (May, 2006)
Superman: Emperor Joker (December, 2006)
Batman: Harley and Ivy (2007)
Batman: Death in the City (November, 2007)
Harley Quinn: Preludes and Knock-Knock Jokes (January, 2008)
Birds of Prey: Dead of Winter (February, 2008)
Batman: Lovers and Madmen (April, 2008)
Countdown to Final Crisis TP Vol. 1 (May, 2008)
Batman: The Joker's Last Laugh (May, 2008)
Countdown to Final Crisis TP Vol. 2 (July, 2008)
Countdown to Final Crisis TP Vol. 3 (September, 2008)
Countdown to Final Crisis TP Vol. 4 (November, 2008)
Mad Love & Other Stories (July 2009)
Gotham City Sirens: Union (April 2010)
Gotham City Sirens: Songs of the Sirens (November 2010)
Gotham City Sirens: Strange Fruit (August 2011)
Gotham City Sirens: Division (March 2012)

ANIMATED SERIES APPEARANCES

BATMAN: THE ANIMATED SERIES APPEARANCES 

Episode #022 - Joker's Favor (September 11th, 1992) 
Episode #033 - The Laughing Fish (January 10th, 1993) 
Episode #046 - Almost Got 'Im (November 11th, 1992) 
Episode #051 - The Man Who Killed Batman (February 01st, 1993) 
Episode #056 - Harley and Ivy (January 18th, 1993) 
Episode #068 - The Trial (May 16th, 1994) 
Episode #072 - Harlequinade (May 23rd, 1994) 
Episode #081 - Harley's Holiday (October 15th, 1994) [renamed The Adventures of Batman and Robin] 
Episode #082 - Lockup (November 19th, 1994) 
Episode #086 - Holiday Knights (September 13th, 1997) [renamed The New Batman Adventures] 
Episode #039 - World's Finest Part I (October 4th, 1997) [Superman: The Animated Series] 
Episode #040 - World's Finest Part II (October 4th, 1997) [Superman: The Animated Series] 
Episode #041 - World's Finest Part III (October 4th, 1997) [Superman: The Animated Series] 
Episode #092 - Joker's Millions (February 21st, 1998) 
Episode #097 - Over The Edge (May 23rd, 1998) 
Episode #105 - Girls' Night Out (October 17th, 1998) 
Episode #106 - Mad Love (January 16th, 1999) 
Episode #108 - Beware The Creeper (November 7th, 1998) 
Movie #001 - Return of the Joker (October 30th, 2001) [Batman Beyond movie] 

STATIC SHOCK APPEARANCES
Episode #025 - Hard As Nails (January 25th, 2003) [Static Shock episode] 

JUSTICE LEAGUE APPEARANCES
Episode #047 - Wild Cards, Part I (December 7th, 2003) [Justice League episode] 
Episode #048 - Wild Cards, Part II (December 7th, 2003) [Justice League episode] 
Movie #001 - The New Frontier (February 26th, 2008) [Justice League movie]

THE BATMAN APPEARANCES
Episode #047 - Two of a Kind (February 24th, 2004) [The Batman episode] 
Episode #050 - Rumors (March 3rd, 2004) [The Batman episode] 

GOTHAM GIRLS APPEARANCES 

Webisode #01 - The Vault (July 27th, 2000) 
Webisode #03 - Trick or Treat (August 24th, 2000) 
Webisode #06 - More Than One Way (October 5th, 2000) 
Webisode #08 - Three Belles (November 16th, 2000)
Webisode #09 - Gardener's Apprentice (November 30th, 2000) 
Webisode #10 - Lady X (December 14th, 2000) 
Webisode #12 - Miss Un-Congeniality (June 19th, 2001) 
Webisode #13 - Strategy (July 3rd, 2001) 
Webisode #14 - Baby Boom (July 17th, 2001) 
Webisode #16 - Bat'ing Cleanup (August 14th, 2001) 
Webisode #17 - Cat Sitter (August 28, 2001) 
Webisode #18 - Gotham Noir (September 11th, 2001) 
Webisode #19 - Scout's Dishonor (September 25, 2001) 
Webisode #20 - I'm Badgirl (July 16th, 2001) 
Webisode #21 - Ms.-ing In Action (July 27th, 2002) 
Webisode #22 - Gotham In Pink (July 30th, 2002) 
Webisode #23 - Hear Me Roar (August 13th, 2002) 
Webisode #24 - Gotham In Blue (August 27th, 2002) 
Webisode #25 - A Cat In The Hand (September 10th, 2002) 
Webisode #26 - Jailhouse Wreck (September 24th, 2002) 
Webisode #27 - Honor Among Thieves (October 8th, 2002) 
Webisode #28 - No, I'm Batgirl! (October 22nd, 2002) 
Webisode #30 - Cold Hands, Cold Heart (November 19th, 2002) 

BRAVE AND THE BOLD APPEARANCES 

Episode #045 - Emperor Joker (October 2010) 

TELEVISION SERIES APPEARANCES

BIRDS OF PREY APPEARANCES 

Episode 001 - Pilot (October 9, 2002)
Episode 002 - Slick (October 16, 2002)
Episode 004 - Three Birds and a Baby (October 30, 2002)
Episode 006 - Primal Scream (November 13, 2002)
Episode 007 - Split (November 20, 2002)
Episode 012 - Feat of Clay (February 19, 2003)
Episode 013 - Devil's Eyes (February 19, 2003)