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Denny O'Neil

Dennis O'Neal began as Stan Lee's editorial assistant in the mid-1960s. He wrote comic stories for Batman starting in the 1970s, and was one of the guiding forces behind returning the Batman character to its dark roots from the campiness of the '60s. He's written several novels, comics, short stories, reviews and teleplays, including the ... See full bio »
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Known For

Justice League
(2001-2004)
Batman: Bad Blood
(2016)
G.I. Joe
G.I. Joe Writer
(1985)

Filmography

Hide Hide Show Show Writer (24 credits)
 2014-2017 Gotham (TV Series) (character: Dr. Leslie Maurin Thompkins - 37 episodes)
- Mad City: The Gentle Art of Making Enemies (2017) ... (character: Dr. Leslie Maurin Thompkins - uncredited)
- Mad City: Smile Like You Mean It (2017) ... (character: Dr. Leslie Maurin Thompkins - uncredited)
- Mad City: Ghosts (2017) ... (character: Dr. Leslie Maurin Thompkins)
- Mad City: Time Bomb (2016) ... (character: Dr. Leslie Maurin Thompkins - uncredited)
- Mad City: The Executioner (2016) ... (character: Dr. Leslie Maurin Thompkins - uncredited)
 2017 Justice League Dark (Video) (character: John Stewart/Green Lantern - uncredited)
 2016 Batman: Return to Arkham (Video Game) (characters: Ra's al Ghul, Talia al Ghul & Michael Washington Lane/Azrael - uncredited)
 2016 Justice League vs. Teen Titans (Video) (character: Ra's al Ghul)
 2016 Batman: Bad Blood (Video) (character created by: Talia al Ghul)
 2015 Season of Infamy (Video Game) (characters: Ra's al Ghul - uncredited)
 2014 Son of Batman (Video) (character: Ra's al Ghul, Talia al Ghul & Ubu - uncredited)
 2013 Batman: Arkham Origins (Video Game) (character: Lady Shiva - uncredited)
 2013 Batman: Arkham Origins - Blackgate (Video Game) (character: Ben Turner/Bronze Tiger - uncredited)
 2011 Batman: Arkham City (Video Game) (characters: Ra's al Ghul, Talia al Ghul & Michael Washington Lane/Azrael - uncredited)
 2010 Batman: Under the Red Hood (Video) (character: Ra's al Ghul - uncredited)
 2008 Lego Batman: The Videogame (Video Game) (character: Ra's al Ghul - uncredited)
  Justice League Unlimited (TV Series) (character: John Stewart/Green Lantern - 18 episodes, 2004 - 2006) (character: Doctor Moon - 1 episode, 2005)
- Destroyer (2006) ... (character: John Stewart/Green Lantern - uncredited)
- Far from Home (2006) ... (character: John Stewart/Green Lantern - uncredited)
- The Great Brain Robbery (2006) ... (character: John Stewart/Green Lantern - uncredited)
- Patriot Act (2006) ... (character: John Stewart/Green Lantern - uncredited)
- Ancient History (2006) ... (character: John Stewart/Green Lantern - uncredited)
 2001-2004 Justice League (TV Series) (character: John Stewart/Green Lantern - 43 episodes)
- Starcrossed: Part III (2004) ... (character: John Stewart/Green Lantern - uncredited)
- Starcrossed: Part II (2004) ... (character: John Stewart/Green Lantern - uncredited)
- Starcrossed (2004) ... (character: John Stewart/Green Lantern - uncredited)
- Comfort and Joy (2003) ... (character: John Stewart/Green Lantern - uncredited)
- Wild Cards: Part II (2003) ... (character: John Stewart/Green Lantern - uncredited)
 2002 Birds of Prey (TV Series) (Character: Lady Shiva - 1 episode)
- Lady Shiva (2002) ... (Character: Lady Shiva - uncredited)
 2000 Batman Beyond (TV Series) (characters: Ra's al Ghul, Talia al Ghul - 1 episode)
- Out of the Past (2000) ... (characters: Ra's al Ghul, Talia al Ghul - uncredited)
 1999 Superman (TV Series) (characters: Ra's al Ghul, Talia al Ghul, Ubu - 1 episode)
- The Demon Reborn (1999) ... (characters: Ra's al Ghul, Talia al Ghul, Ubu - uncredited)
 1998 The New Batman Adventures (TV Series) (character: Dr. Leslie Maurin Thompkins - 1 episode)
- Chemistry (1998) ... (character: Dr. Leslie Maurin Thompkins - uncredited)
 1996-1998 Spider-Man (TV Series) (character: Madame Web - 11 episodes)
- Spider Wars, Chapter 2: Farewell Spider-Man (1998) ... (character: Madame Web - uncredited)
- Spider Wars, Chapter 1: I Really, Really Hate Clones (1998) ... (character: Madame Web - uncredited)
- Secret Wars, Chapter 1: Arrival (1997) ... (character: Madame Web - uncredited)
- The Return of Hydro-Man: Part 2 (1997) ... (character: Madame Web - uncredited)
- Sins of the Fathers Chapter 14: The Turning Point (1996) ... (character: Madame Web - uncredited)
  Batman: The Animated Series (TV Series) (character: Dr. Leslie Maurin Thompkins - 5 episodes, 1992 - 1993) (based on the comic book stories "Daughter of the Demon" & "The Demon Lives Again" by - 2 episodes, 1993) (character: Ra's al Ghul - 1 episode, 1995) (characters: Ra's al Ghul, Talia al Ghul, Ubu - 1 episode, 1994) (based on the comic book story "A Vow From the Grave" by - 1 episode, 1994) (character: Maxie Zeus - 1 episode, 1993) (character: Ra's al Ghul, Talia al Ghul & Ubu - 1 episode, 1993) (story by - 1 episode, 1993) (characters: Ra's al Ghul, Talia al Ghul & Ubu - 1 episode, 1993) (written by - 1 episode, 1993) (based on the comic book story "The Joker's Five-Way Revenge" by - 1 episode, 1993) (based on the comic book story "Into the Den of the Death-Dealers" by - 1 episode, 1992) (characters: Ra's al Ghul & Talia al Ghul - 1 episode, 1992) (character: Anthony Lupus/The Werewolf - 1 episode, 1992) (based on the comic book story "There Is No Hope in Crime Alley" by - 1 episode, 1992)
- Showdown (1995) ... (character: Ra's al Ghul - uncredited)
- Avatar (1994) ... (characters: Ra's al Ghul, Talia al Ghul, Ubu - uncredited)
- Sideshow (1994) ... (based on the comic book story "A Vow From the Grave" by)
- Paging the Crime Doctor (1993) ... (character: Dr. Leslie Maurin Thompkins - uncredited)
- Fire from Olympus (1993) ... (character: Maxie Zeus - uncredited)
 1993 X-Men (TV Series) (character: Kenji Oyama/The Professor - 1 episode)
- Repo Man (1993) ... (character: Kenji Oyama/The Professor - uncredited)
 1989 Superboy (TV Series) (2 episodes)
 1985 G.I. Joe (TV Series) (writer - 1 episode)
- The Invaders (1985) ... (writer - as Dennis O'Neil)
 1978 Logan's Run (TV Series) (written by - 1 episode)
- Stargate (1978) ... (written by - as Dennis O'Neil)
Show Show Miscellaneous Crew (2 credits)
Show Show Thanks (13 credits)
Show Show Self (30 credits)
Show Show Archive footage (1 credit)
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Personal Details

Other Works:

Novella: "There Are No Yesterdays!" - Unknown Worlds of Science Fiction (March, 1975) See more »

Alternate Names:

Dennis O'Neil
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Did You Know?

Trivia:

Served in the U.S. Navy. See more »

Nickname:

Sergius O'Shaugnessy See more »

Star Sign:

Taurus

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