Leon Russom is an American actor who appeared in numerous television series, particularly soap operas. He portrayed Admiral Toddman and the Starfleet Commander-in-Chief in Star Trek VI: The Undiscovered Country. In his later years, he has appeared in shows such as Bones, Jericho, Prison Break, and Cold Case. Russom worked with the Coen brothers twice, playing smaller parts in The Big Lebowski (1998) and True Grit (2010).

The Big Lebowski is a 1998 American independent crime comedy film written, directed, produced and co-edited by Joel and Ethan Coen. It stars Jeff Bridges as Jeffrey "The Dude" Lebowski, a Los Angeles slacker and avid bowler. He is assaulted as a result of mistaken identity, then learns that a millionaire, also named Jeffrey Lebowski, was the intended victim. The millionaire Lebowski's trophy wife is supposedly kidnapped, and millionaire Lebowski commissions The Dude to deliver the ransom to secure her release. The plan goes awry when the Dude's friend, Walter Sobchak, schemes to keep the ransom money for the Dude and himself. Sam Elliott, Julianne Moore, Steve Buscemi, John Turturro, Philip Seymour Hoffman, Tara Reid, David Thewlis, Peter Stormare, Jon Polito, and Ben Gazzara also appear in supporting roles.