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Mark Verheiden is an American television, movie and comic book writer who has written several comic books in Dark Horse Comics' Aliens and Predator lines; Verheiden is notable for having written many of the influential early series that would come to define these lines and make them so popular. His credits also include:

• Executive Producer/Showrunner for the DC Universe series Swamp Thing
• Creator of Timecop
• Writer and Co-Executive Producer for Falling Skies
• Writer for the Netflix series Daredevil
• Co-Executive Producer for Ash vs. Evil Dead
• Writer for Battlestar Galactica (2004) and Caprica
• Co-Writer for Epic Comics’ Stalkers
• Writer for DC’s Action Comics

His other works include the Mask, My Name Is Bruce, writer/producer for seasons three and four of Heroes, and writer/producer on the first three seasons of Smallville. He has also written episodes of Freakylinks, the Strip, Martial Law, Timecop the series and HBO's Perversions of Science.