David Tennant

Rupert Grint - Josh

Jim Broadbent*

Stephen Mangan - Postman Pat (speaking voice)

Greg Ellis - Ben

Robin Atkins Downes - Simon Cowbell

T.J. Ramini - Ben

Dan Hildebrand  -  Ted Glenn

Peter Woodward - Carbunkle

Susan Duerden - Sara Clifton

Ronan Keating - Postman Pat (singing voice)

Enn Reitel - PC Selby / Reverend Timms

Sandra Teles - Julian

*Appeared in the films Bright Young Things and Einstein and Edison with David and the play Pillowman in the West End. His voice can also be found in the animated film Free Jimmy.