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 novelization of the movie Batman Begins. Show more »
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 novelization of the movie Batman Begins.

Justice League
2002, USA
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Episode: The Savage Time: Part 3
as character: John Stewart

Justice League
2002, USA
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Episode: The Savage Time: Part 2
as character: John Stewart

Justice League
2002, USA
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Episode: The Savage Time: Part 1
as character: John Stewart

Justice League
2002, USA
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Episode: Injustice for All: Part 2
as character: John Stewart

Justice League
2002, USA
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Episode: Injustice for All: Part 1
as character: John Stewart

Justice League
2003, USA
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Episode: Secret Society: Part 1
as character: John Stewart

Justice League
2003, USA
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Episode: Only a Dream: Part 2
as character: John Stewart

Justice League
2003, USA
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Episode: Secret Society: Part 2
as character: John Stewart

Justice League
2003, USA
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Episode: Tabula Rasa: Part 1
as character: John Stewart

Justice League
2001, USA
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Episode: Secret Origins: Part 3
as character: John Stewart

Justice League
2003, USA
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Episode: Tabula Rasa: Part 2
as character: John Stewart

Justice League
2001, USA
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Episode: Secret Origins: Part 2
as character: John Stewart

Justice League
2001, USA
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Episode: The Enemy Below: Part 2
as character: John Stewart

Justice League
2001, USA
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Episode: The Enemy Below: Part 1
as character: John Stewart

Justice League
2004, USA
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Episode: The Greatest Story Never Told
as character: John Stewart

Justice League
2001, USA
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Episode: In Blackest Night: Part 1
as character: John Stewart

Justice League
2001, USA
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Episode: In Blackest Night: Part 2
as character: John Stewart