Sergeant Ryker is a film directed by Buzz Kulik. It stars Lee Marvin and Bradford Dillman. The film was originally broadcast on television as "The Case Against Paul Ryker", a 1963 two-part episode of Kraft Suspense Theatre. It was released as a feature film in 1968 to capitalise on Marvin's popularity from The Dirty Dozen. Its second run paired it as a double feature with Counterpoint.