Raúl Juliá as Stu Quiñones

Griffin O'Neal as Danny Masters

Desi Arnaz as Mayor Leon Quiñones

Teri Garr as Arlene

Joan Hackett as Aunt Sibyl

Gabriel Dell as Uncle Burke

John P. Ryan as Vernon

E. G. Daily as Sandra

M. Emmet Walsh as Fritz

Jackie Coogan as Magic Shop Owner

Hal Williams as Cop at Mayor's Office

Helen Page Camp as Neighbor

David Clennon as Newspaper Editor

Harry Caesar as Sax Player

Huntz Hall as Turnkey

Harry Anderson as Harry Masters

George Brengel as Water Commissioner

Carlin Glynn as Treasurer's Secretary

Isabel Cooley as Secretary at Newspaper Office

Tom Signorelli as Mailbox Cop

George Cantero as Jail Trustee

Harry Cohn as Jailmate

James Howard as Cop at Bridal Shop

R. Wayne Kruse as Reporter

Margaret Ladd as Reporter

Tom Mahoney as M.C.

Garry Marshall as Drummer

Doug McGrath as Photographer

Susi Sherman as Woman at Club

Richard Bradford as Sam (uncredited)