A young boy is scared of the monster under his bed. He asks his 6th grade brother to swap rooms for the night as a bet that the monster really exists. Soon the brother becomes friends with the monster and discovers a whole new world of fun and games under his bed where pulling pranks on kids and other monsters is the main attraction.
Fred Savage
as Brian Stevenson
Howie Mandel
as Maurice
Daniel Stern
as Glen Stevenson
Margaret Whitton
as Holly Stevenson
Rick Ducommun
as Snik
Frank Whaley
as Boy
Ben Savage
as Eric Stevenson
William Murray Weiss
as Todd
Devin Ratray
as Ronnie Coleman
Amber Barretto
as Kiersten
J. Michael Hunter
as Mr. Finn
Tom Hull
as Principal
