Bob the Builder

Rob Rackstraw

Scoop / Muck / Travis / Spud (voice) / Spud / Mr. Bentley (voice)

Neil Morrissey

Bob / Roley / Lofty (voice)

Kate Harbour

Wendy / Dizzy / Pilchard / Bird (voice) / Wendy / Dizzy / Scratch / Pilchard / Bird (voice)

Lorelei King

Wendy (voice) / Wendy / Roley (voice) / Wendy / Roley / Sumsy / Packer (voice)

Lachele Carl

Muck (voice)

Alan Marriott

Scoop / Travis (voice) / Scoop / Travis / Dodger (voice) / Scoop / Travis / Spud (voice)

Maria Darling

Dizzy / Roley (voice) / Dizzy / Roley / Trix (voice)

Rupert Degas

Scrambler (voice) / Scrambler / Sandy Beach / Brickbeard (voice)

Emma Tate

Dizzy (voice) / Dizzy / Lofty / Benny (voice) / Lofty / Benny (voice) / Lofty / Dizzy / Benny / Marjorie / Ella / Saffron (voice)

William Dufris

Bob (voice) / Bob / Farmer Pickles / Mr. Beasley / Mr. Sabatini / Skip (voice)

Sonya Leite

Lofty (voice)

Greg Proops

Bob (voice) / Bob the Builder (voice)

Marc Silk

Bob (voice) / Bob the Builder / Mr. Beasley (voice)

David Menkin

Scoop / Travis (voice)

Sophie Aldred

Muck (voice)

Lizzie Waterworth

Lofty (voice)

Jo Wyatt

Scratch (voice)

Vincent Marzello

Farmer Pickles / Robert / Tumbler (voice)

Llewella Gideon

Molly (UK) / Trix (UK) (voice) / Molly (voice) / Molly - Trix (voice) / Trix (UK) (voice - uncredited) / Trix (UK) (voice) / Trix (UK) Molly (UK) (voice) / Trix (UK) Pam Goody (UK) (voice) / Trix (voice)