Fox was born in San Diego, California in 1969. He was married to Actress Alison Eastwood, the daughter of famous actor Clint Eastwood, for 10.5 months. They divorced in January 2000. He currently resides in Laurel Canyon.
In 2005, Fox co-wrote and co-starred in the comedy Tennis Anyone? with Donal Logue. On August 11, 2006, he made his television standup debut on Comedy Central's Live at Gotham and in 2007 received the Jury Prize for best standup at the HBO Comedy Festival in Aspen, Colorado. In March 2008 he was featured in his own 1/2 hour special on Comedy Central: Comedy Central Presents: Kirk Fox. He appeared on The Tonight Show with Jay Leno in December 2008 and May 2009.
In 2009, Fox and Owen Benjamin starred in Heckle U.
In 2012 and 2013, Fox starred as Melinda Hill's suitor in the first and ninth episodes of Romantic Encounters.
From 2013 to May 2014, Fox hosted CBS TV Distribution's syndicated daytime talk show The Test.
