Phía sau bức màn: Cậu bé mất tích – Bóng tối đầu tiên

Shane Attwooll

Chief Hopper

Isabella Pappas

Joyce Maldonado

Calum Ross

Walter Henderson

Matthew Pidgeon

Principal Newby

Christopher Buckley

Bob Newby

Oscar Lloyd

James Hopper Jnr

Patrick Vaill

Dr Brenner

Max Harwood

Alan Munson

Ammar Duffus

Charles Sinclair

Gilles Geary

Ted Wheeler

Louis McCartney

Henry Creel

Faith Delaney

Alice Creel (cenas de arquivo)