On screen
Cast
60 credited performers
Dick Van Dyke
Dick Preston
Hope Lange
Jenny Preston
Fannie Flagg
'Mike' Preston
Nancy Dussault
Carol Davis
Marty Brill
Bernie Davis
Dick Van Patten
Mr. Compton
Henry Darrow
Alex Montenez
Barry Gordon
Dennis Whitehead
David Doyle
Ted Atwater
Barry Van Dyke
Tash Howard
Chita Rivera
Conni Richardson
Richard Dawson
Richard Richardson
Barbara Rush
Margot Brighton
Mabel Albertson
Mrs. Preston, Dick's Mother
Gordon Jump
Mr. Garriman
Teresa Graves
Nurse Allen
Harold Gould
Danny Everson
Carl Reiner
Carl Reiner
Herbie Faye
Manny
Carmen Zapata
Teela
Ronnie Schell
Dr. Rosencranz
Reta Shaw
Head Nurse
Michael Shea
Lucas Preston
Edward Andrews
Character not listed
Sorrell Booke
Herbie Vincent
Stewart Raffill
Chimp Trainer
Mike Henry
Man at the Admitting Desk
Joan Blondell
Aunt Louise
Steve Lawrence
Danny Turner
Teri Garr
Waitress
Larry Hovis
Stan Corbett
John Amos
Mark Cooper
Doris Packer
Darlene Foster
Charles Nelson Reilly
Walter O'Connell
Dick Balduzzi
Luchino Leonardo
Jacqueline Scott
Sister Bernadette
Candy Clark
Pamela Sherry
Lloyd Gough
Officer Jack Brown
Tom Bosley
Mr. O'Hare
Noam Pitlik
Director
Joan Huntington
Ann Marsh
Marcia Rodd
Linda Gallo
Albert Brooks
Dr. Norman
Sid Melton
Arnie
Barbara Rhoades
Charlene
Jerry Van Dyke
Mickey Preston
Cesare Danova
Francois
Herb Edelman
George Benson
Ruth McDevitt
Mrs. Ferguson
Joyce Van Patten
Henrietta
Fran Ryan
Dick's mother
Guy Raymond
Uncle Jackie
Wendell Burton
Lucas Preston
Eddie Bracken
Jake
Marla Adams
Gloria / Brenda
Margaret Avery
Pam Harris / Nurse Wilkinson
Richard Dreyfuss
Tony Injijikian
Jerry Paris
Assistant to the Director
Valerie Curtin
Nurse
Pat Harrington Jr.
Fred Bishop