William Katt
Elgin Smith
Susan Dey
Caroline Hedges
John Heard
David Bonner
Beverly D'Angelo
Shelley
Robert Loggia
John March
Tom Lacy
Professor Oxtan
Swoosie Kurtz
Marsha
June Barrett
Felicia
Judy Kerr
Secretary
Pat O'Hara
Zookeeper
Jenny Hill
Girl in Bar
Billy Beck
Cafeteria Proprietor (uncredited)
Bob Harks
Cafeteria Patron (uncredited)
Virginia Leith
Ann March (uncredited)
John O'Leary
Waiter (uncredited)