Rupert Grint (Josh),
Stephen (Postman Pat),
Jim Broadbent (C.E.O.),
David Tennant (Wilf),
Susan Duerden (Sara Clifton),
Jane Carr (Mrs. Goggins),
Jo Wyatt (Meera Brains),
Success and fame threaten to tear Postman Pat away from his beloved Greendale. Meanwhile, a sinister plot emerges to replace him with legions of robots.