Jeffrey Hephner is an American actor, best known for the role of Jeff Clarke, first on the NBC television series Chicago Fire and then on its sister show, Chicago Med. On film, he co-starred with Jennifer Garner in the action thriller film Peppermint (2018). He also appears in the 2016 National Geographic TV series MARS and the Apple TV+ original science fiction space drama series For All Mankind. In January 2019, he co-starred in the film An Acceptable Loss. In 2023, he began hosting the game show Switch on Game Show Network.
Hephner has appeared in over 50 other films and television shows, including as Morgan Stanley Buffkin in the CW series Easy Money (2008–2009), and as Ben Zajac in the Starz political drama Boss (2011–2012). In 2015, he starred as the title character in the short-lived TNT action drama Agent X.
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Early life
Hephner is the youngest of three children born to Tom and Patti Hephner. He grew up in the small town of Sand Creek, Michigan, in southern Michigan near Adrian. Hephner was athletic growing up, playing basketball and football, and he graduated from Sand Creek High School. Hephner was named to the all-state team for Class C-D for the 1993–1994 season.
He attended and played basketball for Calvin College in Grand Rapids, Michigan for two years before transferring to Ferris State University in Big Rapids, Michigan for two years.








