Teri Hatcher, the "Desperate Housewives" star, ran with Team Disney in the 2009 Nautica Malibu Marathon. Her goal was to raise $50,000 for the Los Angeles Children's Hospital.
The cast of "The Office" entered three teams into the 2011 event. Paul Lieberstein, pictured here, competed with co-star Ellie Kemper and writer Brent Forrester.
"X-Files" actor David Duchovny has completed the event several times, including in 2004, 2005, 2006 2007 and 2011.
Ellie Kemper competed alongside other cast members from "The Office" in the 2011 event.
Felicity Huffman helped the "Desperate Housewives" relay team place second in the celebrity relay division in 2005.
Geoff Stults, known for his appearance in "Wedding Crashers" and "J. Edgar," came out to participate in the 2011 event.
"Modern Family" actress Julie Bowen ran in the 2010 Nautica Malibu Triathlon just three months after she gave birth to twins.
Mark Feuerstein of "Royal Pains" took fifth place in the celebrity division in 2010.
NBC News Anchor Natalie Morales competed with Team Today in the 2011 event. Morales completed the four-mile run in 28 minutes and 42 seconds, her husband knocked out the swim and Jim Garfield finished off the cycling portion.
Nicholas Gonzalez ("Resurrection Blvd.") finished the 2009 event in 1:23:19.3, well ahead of other television celebrities including Mario Lopez ("Saved By the Bell") and Mike Benson ("Lost").
At the 2010 event, news anchor Chris Schauble took third place in the celebrity division.