The Knights of Fix-A-Lot is the second Bob the Builder special.
Bob's father Robert makes a surprise welcome to Bob, Wendy and the gang to help Dr. Mountfinchett repair a castle when Robert pretends to be Bob the Builder and take all the glory. Will the castle be finished and will Bob and his Dad get along?
- William Dufris as Bob The Builder, Farmer Pickles, Mr. Bentley, Mr. Beasley & Mr. Sabatini
- Lorelei King as Wendy, Dizzy, Roley, Mrs. Potts, Mrs. Bentley, Mrs. Percival, Dr. Mountfitchet, The Librarian & Dorothy
- Alan Marriott as Scoop, Spud & Mr. Ellis
- Lachele Carl as Muck
- Sonya Leite as Lofty
- Maria Darling as Pilchard
- Vincent Marzello as Robert
- Neil Morrisey as Bob, Lofty, Farmer Pickles & Mr. Sabatini
- Kate Harbour as Wendy, Dizzy, Pilchard, Mrs. Potts, Mrs. Bentley & Mrs. Percival
- Rob Rackstraw as Scoop, Muck, Roley, Travis, Spud, Mr. Bentley, Mr. Beasley, & Mr. Ellis
- Brenda Blethyn as Dr. Mountfitchet
- Maggie Fox as The Librarian
- Richard Briers as Robert
- June Whitfield as Dorothy