Kathy
Sarah
Sonny
Sam
Mr. Chu
Walter
Tyler
Tommy Madigan
Mrs. Carter
Cooper
Derek (as Matthew Jose Vasquez)
Tyler's Crew (as Courtney Cummings)
Tyler's Crew
Vanessa
Terrified Parent Monster - Mr. Rennie
Sam's Father
Mrs. Hoover
Paramedic - TJ
Pharmacist
Nana
Science Award Presenter-Principal Harrison
Monster Bride (as Katharine C. Lumpkin)
Dead Pirate (as Kent R. Wagner)
Cyborg
Alien (as Barry W. Jerald)
Mummy
Day of the Dead Lady
Goblin
Banshee
Red Haired Ghoul
Vampire
Scarecrow (as Alex T. Hill)
Royal Mummy
Slappy (voice)
Club Goer / Highschool Student (uncredited)
Middle School Student (uncredited)
R.L. Stine (uncredited)
Middle School Kid (uncredited)
Creepy Clown (uncredited)
Trick or Treater (uncredited)
Student (uncredited)
Party Goer (uncredited)
Trick-or-Treater (uncredited)
Monster (uncredited)
Cheerleader (uncredited)
Cowgirl Trick-or-Treater (uncredited)
Middle School Principal (uncredited)
(uncredited)
Club Security Guard (uncredited)
Store Shopper (uncredited)
Gnome Trick-or-Treater (uncredited)
Unicorn Girl (uncredited)
Concert Goer (uncredited)
Ghoul (uncredited)
Teacher in Hole (uncredited)