John Travolta

Danny Zuko

Olivia Newton-John

Sandy Olsson

Jeff Conaway

Kenickie (archive footage)

Barry Pearl

Doody

Michael Tucci

Sonny

Kelly Ward

Putzie

Stockard Channing

Betty Rizzo

Didi Conn

Frenchy

Jamie Donnelly

Jan

Dinah Manoff

Marty Maraschino

Eddie Deezen

Eugene Felsnic

Susan Buckner

Patty Simcox

Lorenzo Lamas

Tom Chisum

Dennis Stewart

Leo 'Craterface' Balmudo (archive footage)

Annette Charles

Charlene 'Cha Cha' DiGregorio (archive footage)

Eve Arden

Principal McGee (archive footage)

Dody Goodman

Blanche Hodel (archive footage)

Sid Caesar

Coach Calhoun (archive footage)

Alice Ghostley

Mrs. Murdock (archive footage)

Darrell Zwerling

Mr. Lynch (archive footage)

Dick Patterson

Mr. Rudie

Fannie Flagg

Nurse Wilkins

Ellen Travolta

Waitress

Frankie Avalon

Teen Angel

Edd Byrnes

Vince Fontaine