cast
- Jack Lemmon
- Victor Clooney
- Walter Matthau
- Trabucco
- Paula Prentiss
- Celia Clooney
- Klaus Kinski
- Dr. Hugo Zuckerbrot
- Dana Elcar
- Capt. Hubris
- Miles Chapin
- Eddie, the Bellhop
- Michael Ensign
- Assistant Manager
- Joan Shawlee
- Receptionist
- Fil Formicola
- Rudy "Disco" Gambola
- C.J. Hunt
- Kowalski
- Bette Raya
- Mexican Maid
- Ronnie Sperling
- Hippy Husband
- Suzie Galler
- Pregnant Wife
- Frank Dent
- Reporter #4
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- Billy Beck
- Gentleman
- Neile Adams
- Saleswoman
- Lorna Thayer
- Lady
- Myrna Dell
- Cashier
- Ed Begley, Jr.
- Lieutenant #1
- Ben Lessy
- Barney Pritzig
- Tom Kindle
- Highway Patrolman #1
- Frances Bay
- Female Patient
- Frank Farmer
- Lieutenant #2
- Biff Manard
- Highway Patrolman #2
- Gene Price
- News Announcer
- Charlotte Stewart
- Nurse
- Pat Bishop
- Native
- Patti Jerome
- Matron
- Archie Lang
- Reporter #2
- Gary Allen
- Man in Robe
- Rod Gist
- Policeman
crew
- Billy Wilder
- Director, Screenwriter
- Jay Weston
- Producer
- Francis Veber
- Play Author
- I.A.L. Diamond
- Screenwriter
- Harry Stradling, Jr.
- Cinematographer
- Lalo Schifrin
- Composer (Music Score)
- Argyle Nelson, Jr.
- Editor
- Daniel Lomino
- Production Designer
- John Loggia
- Production Designer
- Lynn H. Guthrie
- Co-producer
- Charles Matthau
- Associate Producer
- Alain Bernheim
- Executive Producer
- Cloudia
- Set Designer
- William Joseph Durrell, Jr.
- Set Designer
- Don Sharpless
- Sound/Sound Designer
- Gary Daigler
- First Assistant Director
