John Diehl is an American actor, best known for Remote, A Time to Kill, and Stargate. Other film credits include Swerve, The Lucky Ones, Natural Disasters, Running Out of Time in Hollywood, The Zeros, Tully, Monument Ave., Con Air, Nixon, The Client, Falling Down, Gettysburg, The Paint Job, Trumpet #7, National Lampoon's Vacation, Stripes, and Escape From New York.

Television credits include Assistant Chief Ben Gilroy on FX’s The Shield, Chris on NBC’s The John Laroquette Show, and Detective Larry Ziton on NBC’s Miami Vice.

Theatre credits include Off-Broadway, as Shooter in The Sad Lament of Pecos Bill on the Eve Killing His Wife Killer's Head/Action (Signature Theatre); and regionally, as Joe Hill in The Salt Lake City Skyline (Odyssey Theatre), Seth in Peace in the Valley (Cast Theatre), and Jake in A Lie of the Mind (Mark Taper Forum).