Billy Madison
Brian Madison
Veronica Vaughn (as Bridgette Wilson)
Eric Gordon
Principal Max Anderson
Frank
Jack
Carl Alphonse
Juanita
Miss Lippy
Pete
Cook
Ted 'Old Man' Clemens
Rollo the Janitor
Nodding 1st Grader
Penguin
O'Doyle (Grade 1)
Scotty Logan (Grade 1)
Tricia Labonte (Grade 1)
2nd Grade Teacher
2nd Grader
Attractive Lady
Clown
Chauffeur
Ernie (Grade 3)
O'Doyle (Grade 3)
Kyle
Butler
Maid
Dan (Grade 3)
Tour Guide
4th Grade Teacher
Nurse
Architect
Lunch Lady
Pothead
Mr. Oblaski
Nancy Connors
O'Doyle (Grade 9)
Paul
Rod
Crazy Persons
Joyce (Eric's Sercetary)
Tenth Grader
O'Doyle (Grade 12)
Jennifer (Grade 3)
Susan (Grade 3)
Drama Teacher
Lawn Guy
Rock Singer
Principal
Mr. O'Doyle
Mrs. O'Doyle
Newswoman
Haitian Gardener
High School Girl
3rd Grader
Jet Skier
Fire-eater
Danny McGrath (uncredited)
Bus Driver (uncredited)
10th Grader (uncredited)
Brian's Business Associates #1 (uncredited)
