Sandy Dennis as Sylvia Barrett

Patrick Bedford as Paul Barringer

Eileen Heckart as Henrietta Pastorfield

Ruth White as Beatrice Schacter

Jean Stapleton as Sadie Finch

Sorrell Booke as Dr. Bester

Roy Poole as Mr. McHabe

Florence Stanley as Ellen Friedenberg

Ellen O'Mara as Alice Blake

Jeff Howard as Joe Ferone

Vinnette Carroll as The Mother

Martha Greenhouse as Mrs. Kagan

Frances Sternhagen as Charlotte Wolf, School Librarian

Elena Karam as School Nurse

Maria Landa as Carole Blanca

Candace Culkin as Linda Rosen

Lew Wallach as Lou Martin

Salvatore Rasa as Harry A. Kagan

Jose Rodriguez as Jose Rodriguez

John Fantauzzi as Eddie Williams

Bud Cort as Student

Esther Rolle as Teacher

Linda Gillen as Student