Guest Stars
Roberts Gannaway
voices Roto
Rhys Darby
voices Roger Rogers
Nathan Fillion
voices Johnny
Bobby Moynihan
voices Chet
Corey Burton
voices Slappy
Danny Pudi
voices Evan
Christopher Swindle
voices McLean
Ryan McPartlin
voices Bully Monster 1
Ryan McPartlin
voices Mr. April
Danny Trejo
voices Terry
Corey Burton
voices C.R.E.E.P. Worker
Emily Peterson
voices Fear Co. Narrator
Emily Peterson
voices Fancy Monster
Carlos Alazraqui
voices Business Monster
Max Mittelman
voices Convention Monsters
Kevin Deters
voices Janitor
