Burt Reynolds as Wendell Sonny Lawson

Dom DeLuise as Marlon Borunki

Sally Field as Mary Ellen

Strother Martin as Dr. Waldo Kling

David Steinberg as Marty Lieberman

Joanne Woodward as Jessica Lawson

Norman Fell as Dr. Samuel Krugman

Myrna Loy as Maureen Lawson

Kristy McNichol as Julie Lawson

Pat O'Brien as Ben Lawson

Robby Benson as Father Dave Benson

Carl Reiner as Dr. James Maneet

Louise LeTourneau as Receptionist

Bill Ewing as Hearse Driver

Robert Rothwell as Limousine Driver

Patrick Moody as Old Man's Son

James Best as Pacemaker Patient

Harry Caesar as Hospital Orderly

Peter Gonzales Falcon as Latin Lover (as Peter Gonzales)

Janice Carroll as Ballet Teacher

Frank McRae as Male Nurse

Alfie Wise as Male Nurse

Jerry Fujikawa as Japanese Gardener

Queenie Smith as Old Lady in Driving School Car

Jean Coulter as Driving School Instructor