Robert Downey Jr.
James Barris
Woody Harrelson
Ernie Luckman
Winona Ryder
Donna Hawthorne
Rory Cochrane
Charles Freck
Mitch Baker
Brown Bear Lodge Host
Sean Allen
Additional Fred Scramble Suit Voice (voice)
Cliff Haby
Voice from Headquarters (voice)
Mark Turner
Additional Hank Scramble Suit Voice (voice)
Chamblee Ferguson
Medical Deputy #2
Angela Rawna
Medical Deputy #1
Eliza Stevens
Arctor's Daughter #1
Sarah Menchaca
Arctor's Daughter #2
Melody Chase
Arctor's Wife
Leif Anders
Freck Suicide Narrator (voice)
Wilbur Penn
Medical Officer #1
Ken Webster
Medical Officer #2
Hugo Perez
New Path Staff Member #1
Rommel Sulit
New Path Staff Member #2
Christopher Ryan
New Path Resident #1
Leila Plummer
New Path Resident #2
Jason Douglas
New Path Farm Manager
Gary Teague
Brown Bear Lodge Member (uncredited)