Stephen Kearney as Nathan / Philbert

Amy Yasbeck as Diane

Robert Trebor as Buddy

Robert Colbert as Board Doctor

Sandra Gould as Ma Belle

Captain Haggerty as Frank

Barry Livingston as Williams

Peter Lupus as Musso

Robert Mandan as Mr. Henderson

Emil Sitka as Geeves

Stella Stevens as Mrs. Robinson

Constance Towers as Mrs. Henderson

Joseph Whipp as Doctor Foster

Traci Lords as Miss Tress

Catherine Bach as Benefit Reporter

Shandra Beri as Julia

Carolyn Finney as Ceremony Assistant

Paul Hirsch as Skateboarder

Christopher Mankiewicz as Newscaster

King Moody as Victor Kaplan

Lesa Ann Pedriana as Tennis Reporter

Dee Booher as Large Nurse

Rhett as Mr. Parrot

Michele Rifkin as Wife Of Horse Husband

Marla Rubinoff as Hazel Nut

Danielle Yaron as Nathan Baby

Tal Yaron as Philbert Baby

Ben Stiller as Pie Thrower (uncredited)