Zack Morris

Mark-Paul Gosselaar

Himself

John Candy

Samuel 'Screech' Powers

Dustin Diamond

Jessie Spano

Elizabeth Berkley

Alvin Seville (voice)

Ross Bagdasarian

ALF (voice)

Paul Fusco

The Master Programmer

Sherman Hemsley

Kevin Keene (voice)

Matt Hill

Miyagi Yakuga (voice)

Robert Ito

Albert Clifford 'A.C.' Slater

Mario López

Papa Smurf (voice)

Don Messick

Flash

John Moschitta Jr.

Kelly Kapowski

Tiffani Thiessen

Lisa Turtle

Lark Voorhies

Ms. Bagwind

Marsha Warfield

Max (archive footage)

Ed Alonzo

Mr. Richard Belding (archive footage)

Dennis Haskins