Ty Burrell

Mr. Peabody (voice)

Max Charles

Sherman (voice)

Ariel Winter

Penny Peterson (voice)

Allison Janney

Ms. Grunion (voice)

Stephen Colbert

Paul Peterson (voice)

Stephen Tobolowsky

Principal Purdy (voice)

Stanley Tucci

Leonardo da Vinci (voice)

Karan Brar

Mason (voice)