World of Tomorrow is an upcoming episode of the twenty-fourth series.




Main Cast

  • Thomas
  • Gordon
  • James
  • Percy
  • Emily
  • Nia
  • Rebecca
  • Sir Topham Hatt
  • Annie and Clarabel (cameo)

Additional Cast

  • Sonny
  • Kenji
  • Sir Robert Norramby
  • Ruth
  • Baz and Bernie
  • Professor Freidrich
  • Dr. Kim
  • Dr. Holyfield
  • Dr. Hetty
  • Stanley (cameo)
  • Stephen (cameo)
  • Glynn (cameo)
  • Millie (cameo)
  • Jem Cole (cameo)
  • The Thin Clergyman (cameo)
  • Cyril the Fogman (cameo)
  • Hiro (mentioned)



  • John Hasler as Thomas
  • Keith Wickham as Gordon and Sir Topham Hatt
  • Rob Rackstraw as James, Bernie and Professor Freidrich
  • Nigel Pilkington as Percy
  • Teresa Gallagher as Emily, Annie and Clarabel
  • Yvonne Grundy as Nia
  • Rachael Louise Miller as Rebecca and Dr. Hetty
  • Joe Swash as Sonny
  • Matt McCooey as Kenji
  • Mike Grady as Sir Robert Norramby
  • Dominique Moore as Ruth
  • Siu-see Hung as Dr. Kim
  • Colin McFarlane as Dr. Holyfield
  • Bob Golding as Baz


  • Joseph May as Thomas
  • Kerry Shale as Gordon
  • Rob Rackstraw as James, Bernie and Professor Freidrich
  • Christopher Ragland as Percy
  • Jules de Jongh as Emily
  • Yvonne Grundy as Nia
  • Rachael Louise Miller as Rebecca and Dr. Hetty
  • Joe Swash as Sonny
  • Matt McCooey as Kenji
  • Teresa Gallagher as Annie and Clarabel
  • Keith Wickham as Sir Topham Hatt
  • Mike Grady as Sir Robert Norramby
  • Dominique Moore as Ruth
  • Siu-see Hung as Dr. Kim
  • Colin McFarlane as Dr. Holyfield
  • Bob Golding as Baz
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