John Hasler

(30 episodes) as Cluck (voice) / Pour Milk (voice) / Backwards (voice) / Splat Red (voice) / Scoop Sand (voice)

as Thomas

as Thomas

as Arnold McKinnley / James Jones (voice)

as Arnold McKinley / James Jones

as Thomas (UK) (voice)

as Thomas (voice, UK)

as Thomas (UK) (voice)

as Thomas (voice)

(132 episodes) as Foz (voice)

(52 episodes) as Toot

as Irving Clifford

(76 episodes)

(26 episodes) as Jim Hawkins (voice)

(25 episodes) as James / Professor Pickles (voice)

(51 episodes) as James (voice)

(1 episode) as Lee Carter

(90 episodes)

as Stephen