Full Cast & Crew
Cast (in credits order)
| Michael Brandon | ... | Narrator | |
| Martin T. Sherman | ... | Thomas / Percy (as Martin Sherman) | |
| David Bedella | ... | Victor | |
| William Hope | ... | Toby / Edward | |
| Togo Igawa | ... | Hiro | |
| Jules de Jongh | ... | Alicia Bott / Rosie / Emily | |
| Kerry Shale | ... | Sir Topham Hatt / Kevin / Gordon / James | |
| Glenn Wrage | ... | Charlie | |
| Steven Kynman | ... | Norman Stanley Price / Sam Jones / James Jones | |
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David Carling | ... | Elvis Cridlington / Norris Steele / Charlie Jones / Trevor Evans |
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Su Douglas | ... | Helen Flood / Mandy Flood / Dilys Price |
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Tegwen Tucker | ... | Penny Morris / Sarah Jones / Bronwyn McShell-Jones |
| Rupert Degas | ... | Scrambler | |
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Rob Rackstraw | ... | Scoop / Muck / Mr. Bentley |
| Neil Morrissey | ... | Roley / Bob the Builder / Lofty | |
| Kate Harbour | ... | Wendy / Dizzy (voice) | |