Richardson is the current president of Dark Horse Comics, a comics publishing company he founded in 1986. Richardson is also the president of Dark Horse Entertainment, a subsidiary company which has developed and produced numerous projects for film and television based on Dark Horse properties or licensed properties. In addition, he owns the retail chain and website Things From Another World, and has written numerous graphic novels and comics series, including The Secret, Living with the Dead, and Cut as well as co-authoring two non-fiction books: Comics Between the Panels and Blast Off! In January 2010 Bruce Campbell told that Richardson works as producer an the sequel to My Name is Bruce, the film called Bruce vs. Frankenstein and is set for release in late 2010.

Comics

Comics work includes:

• The Mask
• Cravan (with Rick Geary, hardcover, Dark Horse, 2005, ISBN 1-59307-291-0)
• The Secret (with Jason Shawn Alexander, 4-issue mini-series, Dark Horse, February—May 2007, trade paperback, November 2007, ISBN 1-59307-821-8)
• Living With The Dead (with Ben Stenbeck, 3-issue mini-series, Dark Horse, October—December, 2007)
• Cut (with Todd Herman, graphic novel, Dark Horse, December 2007, ISBN 1-59307-845-5)

Books

Books include:

• Comics: Between the Panels (with Steve Duin, 1998, ISBN 1-56971-344-8)

Richardson's film writing credits include:

• Timecop (1994)
• The Berlin Decision (2003)

He has also produced a large number of films (most involving Dark Horse properties) including:

• The Mask (1994)
• Barb Wire (1996)
• Mystery Men (1999)
• Hellboy (2004)
• My Name Is Bruce (2007)

Mike Richardson has been nominated for two film awards:

• 1997 Razzie for Barb Wire
• 2007 Emmy for Sword of Storms