Lloyd
Harry
Travis / Captain Lippincott
Adele
Penny
Dr. Pinchelow
Dr. Meldmann
Ms. Sourpuss
Mrs. Julie James
Fraida
Ice Pick
Dr. Walcott
Emergency Room Doctor
Billy
Gordy
Tom
Gus
Professor Garabedian
Inventor #1 (as Matthew Cardarople)
Harry's Dad
Harry's Mom
Convention Official
Mr. Stainer
Mrs. Stainer
Asylum Nurse #1
Asylum Nurse #2
Asylum Patient
Ninja Leader (as Kasseem 'Swizz Beatz' Dean)
Trucker
Trucker's Pal
Receptionist
Dr. Dilbeck
Fanny Age 5
Inventor #2
Mrs. Snergle (as Jo Wintker)
Fanny Age 13
Nursing Home Orderly (as Eddie Barbanell)
Farmer's Wife (as Mariann Neary Farrelly)
Farmer
Inventor No. 3
Young Harry (as Dalton Gray)
Bartender
Harry's Trailer Park Wife
Young Fraida
Bus Kid
Prom Date
Stuffy Woman
Emergency Room Nurse (as Arielle Lieberman)
Emergency Room Orderly
Emergency Medical Technician #1
Emergency Medical Technician #2
Wheelchair Ninja
Room Service Waiter
Trailer Grandma
Joystick Victim
Bus Driver (as Rhomyen Johnson)
KEN Conference Attendee
KEN Conference Attendee (as Jonathan Goldblatt)
KEN Conference Attendee (as Derek Iverson)
KEN Conference Attendee (as John Blake McCormick)
KEN Conference Attendee (as Christopher Sheridan)
KEN Conference Attendee (as John Veiner)
KEN Conference Attendee (as Wellesly Wilde)
Neighborhood patron (uncredited)
Prom Attendee (uncredited)
Hospital Visitor (uncredited)
KEN Convention Employee (uncredited)
Ken Conference Attendee (uncredited)
Club-Goer (uncredited)
KEN Conference Attendee (uncredited)
Young Inventor (uncredited)
Mental Patient (uncredited)
Janessa - Prom Attendee (uncredited)
Ken Con Scientist (uncredited)
Man at Gas Station (uncredited)
Patron (uncredited)
Orderly (uncredited)
Prom Singer (uncredited)
Audience Member (uncredited)
Street Patron (uncredited)
Conference Patron (uncredited)
Science Patron (uncredited)
Club Patron (uncredited)
Ken Vendor (uncredited)
Scientist (uncredited)
KEN Convention Attendee (uncredited)
Doctor (uncredited)
Waitress (uncredited)
Knitting Lady on porch (uncredited)
Officer Stone - El Paso Police (uncredited)
Mr. Felcher the Mortician (voice) (uncredited)
Hospital Patient (uncredited)
Security Guard (uncredited)
Chaperone (uncredited)
Neighbor (uncredited)
Sea Bass (uncredited)
Pedestrian (uncredited)
Mariachi Trumpet Player (uncredited)
Waiter (uncredited)
Trophy Wife / Mrs. Rhode Island (uncredited)
Park Patron (uncredited)
Nerd (uncredited)
Homeless Guy (uncredited)
Convention Center Nerd (uncredited)
Bookstore Patron (uncredited)
Restaurant Patron (uncredited)
Convention Attendee (uncredited)
Extra (uncredited)
Allison Frugal-philanthropist (uncredited)
Nurse (uncredited)