| JJohn HaslerThomas (voice) | Thomas (voice) |
 Nikhil ParmarRajiv / Monkey Palace Announcer (voice) | Rajiv / Monkey Palace Announcer (voice) |
 Sheena BhattessaCharubala (voice) | Charubala (voice) |
| JJash PatelCoconut Stallholder (voice) | Coconut Stallholder (voice) |
 Keith WickhamEdward / Gordon / Salty / The Fat Controller / Dowager Hatt / Workmen / Samson's Driver / Henry (voice) | Edward / Gordon / Salty / The Fat Controller / Dowager Hatt / Workmen / Samson's Driver / Henry (voice) |
 Rob RackstrawToby / James / Isla's Radio / Dock Worker / Bradford (voice) | Toby / James / Isla's Radio / Dock Worker / Bradford (voice) |
 Steven KynmanDuck / Paxton / Rail Worker (voice) | Duck / Paxton / Rail Worker (voice) |
 Teresa GallagherEmily / Judy / Annie / Clarabel / Lady Hatt (voice) | Emily / Judy / Annie / Clarabel / Lady Hatt (voice) |
 Tracy-Ann ObermanDaisy (voice) | Daisy (voice) |
 Lucy MontgomeryHannah / Carly (voice) | Hannah / Carly (voice) |
 Mark MoraghanDexter (voice) | Dexter (voice) |
 Tim WhitnallJerome / Reg (voice) | Jerome / Reg (voice) |
| JJessica HannChild (voice) | Child (voice) |
| CCharlie BarnardChild (voice) | Child (voice) |
| MMia HopeChild (voice) | Child (voice) |
| HHolly HazeltonChild (voice) | Child (voice) |
| IInnis Robertson-PinnellChild (voice) | Child (voice) |
| DDoc DentonChild (voice) | Child (voice) |
 Nigel PilkingtonPercy / Trevor / Fantasy Merlin (voice) | Percy / Trevor / Fantasy Merlin (voice) |
 Hugh BonnevilleMerlin (voice) | Merlin (voice) |
| YYvonne GrundyNia (voice) | Nia (voice) |
 Rachael Louise MillerRebecca / Isla (voice) | Rebecca / Isla (voice) |
| MMatt WilkinsonCranky / Ben (voice) | Cranky / Ben (voice) |
 Shane JacobsonShane (voice) | Shane (voice) |
 Genevieve McCarthyAubrey (voice) | Aubrey (voice) |
| TTim BainAiden / Madeleine's Father (voice) | Aiden / Madeleine's Father (voice) |
| RRose RobinsonTamika (voice) | Tamika (voice) |
| TTariro MavondoRanger Jill (voice) | Ranger Jill (voice) |
 Rasmus HardikerBill / Philip / Rail Worker (voice) | Bill / Philip / Rail Worker (voice) |
 Nicola StapletonRosie (voice) | Rosie (voice) |
