David Cassidy (Adam - 11)
Olivia D'Abo (Chanel-6)
Geoff Hoyle (Heinz 57)
Steve McDonald (Tommy Sears)
Maud Winchester (Cyndi the Waitress)
Ryan Wallace (Chester)
Gigi Vorgan
Martin Von Hasselberg (Agent 1)
Morgan Upton (Teacher)
Tree (Guard)
Moon Zappa (Cheryl Dickman)
Julie Brown (Ms. Liberty)
Gerald V. Casale (Yale-44)
Tommy Chong (Stoner)
Mark Mothersbaugh (Chevron-17)
Lucas Reiner (Fireworks Barker)
David Kendrick (Ron-31)
Tracy Newman
Arnold Turner
Jonathan Stark
Greg Snegoff
Devo (Ministers of Knowledge)
Charles Dean (Chris' Dad)
Iron Eyes Cody (Himself)
Shelby Chong (Cashier)
Jerry Carlton (Streaker)
Ann Block (Chris' Mom)
Jack Blessing
Barbara Bain (Hipster)
Nancye Ferguson (Nurse)
Leigh French (the Future)
Jeff McDonald (Chris Johnson)
Lori Holt (1st Cop)
Brian Roth (Agent 2)
Lisa Houston (Heckler)
Todd A. Rolle (Clovis)
Kipper Kids
Don Novello (Translator)
Michael McShane (Angry Driver)
Liam O'Brien (Rodney Snodgrass)
Leif Garrett (Eddie Trojan)
Carl Reiner (Dr. Von Mobil)
Rob Reiner (Dr. Cash)