Dan Aykroyd
— Jack Lambert
Lily Tomlin
— Inga Mueller
Jack Lemmon
— Mueller / Luger
Bonnie Hunt
— Gail Holland
Brian Kerwin
— Marty Lambert
Jerry Adler
— Judge
Andy Romano
— Psychiatrist
Robert Fields
— Sgt. Roarke
J.C. Quinn
— Detective Stanley
Susan Forristal
— Waitress Patti
Marissa Chibas
— Liz Lambert
Jon Korkes
— Chemistry Lab Professor
Kathleen Marshall
— Student #1
Jack Jessup
— Old Man
Judy Sinclair
— Old Woman
Dave Nichols
— Lawyer Brownell
Damon D'Oliveira
— Electronic Salesman
Wayne Robson
— Bartender