Alex Sharp (Christopher Boone), Francesca Faridany (Siobhan), Ian Barford (Ed), Enid Graham (Judy), Helen Carey (Mrs. Alexander), Mercedes Herrero (Mrs. Shears and others), Ben Horner (Mr. Thompson and others), Richard Hollis (Roger Shears and others), David Manis (Rev. Peters and others), Jocelyn Bioh (No. 37 and others), Keren Dukes, Stephanie Roth Haberle, Tim Wright, Tom Patrick Stephens