Nicholas Griep (Christopher Boone), Brianne Smith (Siobhan), Jeremy Urann (Ed), Abbey Crawford (Judy), Robbi Starnegg (Mrs. Alexander), Suzanne Maguire (Mrs. Shears and others), Dallan Starks (Mr. Thompson and others), Charles Fletcher (Roger Shears and others), Jerry Sciarrio (Rev. Peters and others), Elizabeth Martin (No. 37 and others)