Season 4, Episode 21 Up in Klink's Room

Espionage in a hospital room? Dr. Klaus: Henry Corden. Hogan: Bob Crane. Klink: Werner Klemperer. Schultz: John Banner. Kinchloe: Ivan Dixon. Newkirk: Richard Dawson. Hilda: Sigrid Valdis. LeBeau: Robert Clary. Nurse Gerda: Muriel Landers. Major Zimmer: Forrest Compton.