• 
  Sharon Baird

  Lady Boyd
• 
  Joy Campbell

  Cling
• 
  Walker Edmiston

  Dr. Blinkey
• 
  Roberto Gamonet

  H.R. Pufnstuf
• 
  Joan Gerber

  Freddy the Flute
• 
  Billie Hayes

  Witchiepoo
• 
  Jerry Landon

   Living Island Tree (17 episodes, 1969-1970)
• 
  Jon Linton

   Various Characters (17 episodes, 1969-1970)

• 
  Scutter McKay

   Various Characters (17 episodes, 1969-1970)
• 
  Harry Monty

   Various Characters (17 episodes, 1969-1970)
• 
  Andy Ratoucheff

   Various Characters (17 episodes, 1969-1970)
• 
  Angelo Rossitto

  Clang
• 
  Felix Silla

  Polka Dotted Horse
• 
  Johnny Silver

  Ludicrous Lion
• 
  Jack Wild

  Jimmy

• 
  Robin Roper

   Various Characters (17 episodes, 1969-1970)
• 
  Lennie Weinrib

  H.R. Pufnstuf