David Thewlis was included in James and the Giant Peach.
David Thewlis . He has also done voice work in the films James and the Giant Peach ( 1996 ) , The Miracle Maker ( 2000 ) , and Anomalisa ( 2015 ) , and is additionally known for the role of Cyrus Crabb in the TV mini series Dinotopia . James and the Giant Peach (film) . Co-stars Joanna Lumley and Miriam Margolyes played James 's aunts in the live-action segments , and Simon Callow , Richard Dreyfuss , Susan Sarandon , Jane Leeves , David Thewlis , and Margoyles voiced his insect friends in the animation sequences .