 Michael AngelisNarrator (voice) | Narrator (voice) |
 Ben SmallThomas / Toby (voice) | Thomas / Toby (voice) |
 Keith WickhamJames / The Fat Controller / Mr. Bubbles / Bakers / Henry / Percy (voice) | James / The Fat Controller / Mr. Bubbles / Bakers / Henry / Percy (voice) |
| MMatt WilkinsonLittle Boy / Victor / Kevin (voice) | Little Boy / Victor / Kevin (voice) |
 Teresa GallagherEmily / Additional Voices (voice) | Emily / Additional Voices (voice) |
 Togo IgawaHiro (voice) | Hiro (voice) |
 Steven KynmanFireman Sam / Norman Price / Elvis Cridlington / James Jones (voice) | Fireman Sam / Norman Price / Elvis Cridlington / James Jones (voice) |
| TTegwen TuckerPenny Morris / Bronwyn Jones / Sarah Jones (voice) | Penny Morris / Bronwyn Jones / Sarah Jones (voice) |
 David CarlingStation Officer Steele / Chief Fire Officer Boyce / Mike Flood / Trevor Evans (voice) | Station Officer Steele / Chief Fire Officer Boyce / Mike Flood / Trevor Evans (voice) |
| JJohn HaslerJames Jones (voice) | James Jones (voice) |
 Su DouglasDilys Price / Mandy Flood (voice) | Dilys Price / Mandy Flood (voice) |
 Neil MorrisseyBob / Roley / Lofty / Farmer Pickles (voice) | Bob / Roley / Lofty / Farmer Pickles (voice) |
 Rob RackstrawScoop / Muck / Travis / Spud / Mr. Bentley (voice) | Scoop / Muck / Travis / Spud / Mr. Bentley (voice) |
 Kate HarbourWendy / Dizzy / Scratch / Mrs. Toosie (voice) | Wendy / Dizzy / Scratch / Mrs. Toosie (voice) |
 Rupert DegasScrambler (voice) | Scrambler (voice) |
 Alfie FieldMike (voice) | Mike (voice) |
| MMatteo BragoliFernando (voice) | Fernando (voice) |
 Beth ChalmersQueen Martha (voice) | Queen Martha (voice) |
| BBob GoldingTown Crier / Pa Troll (voice) | Town Crier / Pa Troll (voice) |
| JJessica HannEvie (voice) | Evie (voice) |
 Colin McFarlaneSparkie the Dragon (voice) | Sparkie the Dragon (voice) |
 Russell ToveySquirt (voice) | Squirt (voice) |
