Pamela Sue Martin

Character: Abby

Betsy Slade

Character: Muffy

Parker Stevenson

Character: Michael

George O'Hanlon, Jr.

Character: Malcolm

Karen Balkin

Character: Laura

Debralee Scott

Character: Ann

Nora Heflin

Character: Emmy

Kathryn Holcomb

Character: Helen

Roderick Cook

Character: Headmaster

Edith Atwater

Character: Mrs. Pendleton

Marijane Maricle

Character: Miss Picard

Meg Wyllie

Character: Nurse

Mary Jackson

Character: Miss Moran

Carol Arthur

Character: Gym Teacher

Hope Summers

Character: Biology Teacher

Jerry Hardin

Character: Mr. Keats

Robert Walden

Character: Frank

Luke Andreas

Character: Marge

Darrell Zwerling

Character: Dr. Madden

Lou Frizzell

Character: Dr. Freeman

Michael Gray

Character: Buzzy

Helene Winston

Character: Mrs. H

Helen Baron

Character: Mrs. Reed

Cliff Emmich

Character: Hotel Clerk

Herbert Nelson

Character: Minister

James Brodhead

Character: St. Ambrose Headmaster

Christopher Man

Character: David

Diana Webster

Character: Mrs. Clairmont

Ron Kolman

Character: Jamie Clairmont

Bob Harks

Character: Party Guest (uncredited)