Lance Clayton

Robin Williams

Kyle Clayton

Daryl Sabara

Claire

Alexie Gilmore

Andrew Troutman

Evan Martin

Principal Anderson

Geoffrey Pierson

Jerry Klein

Tom Kenny

Heather

Lorraine Nicholson

Mike Lane

Henry Simmons

Bonnie McBon

Mitzi McCall

Bert Green

Toby Huss

Jason

Jermaine Williams

Morgan

Morgan Murphy

Ginger

Naomi Glick

Dan Spencer

Dan Spencer

Peter

Zach Sanchez

Make-Up Woman

Jill Talley

Jennifer

Ellie Jameson

Chris

Michael Thomas Moore

Himself

Bruce Hornsby

Metal Kid

Alles Mist

Newspaper Vendor

Krist Novoselic

Limo Driver (uncredited)

Bobcat Goldthwait

Dr. Pentola

Tony V.

Nosy Neighbor

Rebecca Erwin Spencer

Nosy Neighbor

Cheri Minns

Peter (as Zach Sanchez)

Zachary Vitale

Nosy Neighbor

Zazu

Metal Kid

Ray Buckley

Mabel

Mabel Mae

The Fighting Pug

Zoe

Dr. Dana

Deborah Horne

Mabel

Mable Mae

Bruce Hornsby's Mic Stand

Riley Dean Stone