Like Father Like Son

Dudley Moore

Dr. Jack Hammond / Chris Hammond

Kirk Cameron

Chris Hammond / Dr. Jack Hammond

Margaret Colin

Ginnie Armbruster

Catherine Hicks

Dr. Amy Larkin

Patrick O'Neal

Dr. Larry Armbruster

Sean Astin

Clarence / Trigger

Camille Cooper

Lori Beaumont

Micah Grant

Rick Anderson, Lori's Boyfriend