Jeff Tracy (voice)
Scott Tracy (voice)
Virgil Tracy (voice)
Virgil Tracy / Cravitz (voice)
Alan Tracy / Ned Cook (voice)
Brains / Gordon Tracy / Aloysius Parker / Kyrano / Joe / Clayton / 2nd Site Control Policeman (voice)
Lady Penelope (voice)
Tin-Tin Kyrano (voice)
John Tracy / U.S.N. Sentinel Commander / Compère / 1st Site Control Policeman (voice)
Frank Hooper / Sir Harry (voice)