Jake Austin Walker

as Seth Geary

as Matty

as Henry King Jr. / Brainwave Jr.

as Sam Stoller

as Officer Hoff

as Jared Talbot

as Hardy Brown

as Liam Sadusky

as Kyle Richter

as Ted

as Older Orphan Boy (uncredited)

as Dennis

as Trevor

as J.J.

as Jeremy

as Alex Baker

as Zack