- Joseph S. Lambert
- Bramble / Arnold / Herbert Diggs (as Joseph S. Lambert)
- Siobhan Lumsden
- Young Bramble / Warren / Hoo Hoo (voice)
- Sara Secora
- Avi
- Paul 'Maxx' Rinehart
- Vick / Tiki (voice)
- Kieran Katarey
- Briar / Maurice (voice)
- Christopher Price
- Mr. Cruz
- Nicola Vincent
- Young Mrs. Cruz / Young Mr. Cruz (voice)
- Olivia Seaton-Hill
- Mrs. Cruz
- Barbara Quesada
- Babu
- Ruth Urquhart
- Avi's Mom
- Chris Boike
- Avi's Dad
- Gio Borsboom
- (voice)
- Fred Butter
- (voice)
- Ziyang Cheng
- (voice)
- Wanyao Li
- (voice)
- Merijn Oerlemans
- (voice)
- Paul Rosenboom
- Briar
- Rik Sinkeldam
- Mr. Cruz
- Liu Siqi
- (voice)
- Xiao Tan
- (voice)
- Carla van der Veldt
- Bingo dame
- Andy van Veen
- Vick
- Milan van Weelden
- Bramble
- Belinda Vermeer
- Mrs. Cruz
- Bingjun Zhang
- (voice)
- Wei Zhang
- (voice)
