Conor
Grandma
Mum
Dad
Mr. Clark
Harry
Sully
Anton
Miss Kwan
Steven
Lawyer
5-Year-Old Connor
Lily's Mum
Female Nurse
Teacher
Lily
The Head Teacher
The Monster (voice)
Student (uncredited)
Rollercoster Rider (uncredited)
School Girl (uncredited)
Paramedic (uncredited)
Rollercoaster Boy (uncredited)