When an old castle needs repairs, it's time to call Bob the Builder! Unfortunately a case of mistaken identity puts Bob's father in charge, resulting in one disaster after another! Meanwhile, tales of Camelot inspire Bob's noble crew of machines - Sir Lift-A-Sot, Sir Roll-A-Lot and Lady Mix-A-Lot - in their quest to get the job done. And Sir Spud-A-Lot finds a suit of armor and a fiery steed almost perfect for jousting! Back at the castle, Bob's father is a bit of a royal pain, locking himself and Bob in the dungeon and then finding himself mysteriously trapped in a maze! Finally, a medieval pageant celebrates the grand opening of the castle and a great father-son relationship.
Neil Morrissey
as Bob / Lofty / Roley / Farmer Pickles / Mr. Sabatini / Falcon / Guard (voice)
Richard Briers
as Robert (voice)
Brenda Blethyn
as Dr. Florence Mountfitchet (voice)
June Whitfield
as Dot (voice)
Kate Harbour
as Pilchard (voice)
Rob Rackstraw
as Scoop / Muck / Roley / Spud / Mr. Beasley / Mr. Bentley (voice)
Maggie Fox
as The Librarian (voice)
