Actors that were in the movie
Mason Thames plays Finney Shaw, the main character. He’s a quiet, bullied 13-year-old boy who gets kidnapped and has to figure out how to survive and escape the Grabber’s basement using help from mysterious phone calls.
Madeleine McGraw plays Gwen Shaw, Finney’s younger sister. She has psychic dreams that show clues about the kidnappings and helps the police try to find her brother
Ethan Hawke plays The Grabber, the masked villain who kidnaps children and traps them in his soundproof basement. His performance is creepy and calm on the outside but very threatening underneath.