Tom Kenny

Dr. Two Brains

Jeffrey Tambor

Cree Summer

Granny May

Patton Oswalt

Tobey McCalister III (voice)

Grey DeLisle

Carlos Alazraqui

Mr. Lawrence

Dannah Feinglass Phirman

Becky Botsford / WordGirl (voice)

Fred Stoller

Chuck the Evil Sandwich Making Guy (voice)

Charlie Adler

Jill Talley

Chris Parnell