Peter / Alpheus / Dee Dee (voice)

Lawyer / Vineyard Owner / Wise Man (voice)

Jashub (voice)

Jahm / Jafar / Old Man (voice)

Simon (voice)

Steward (voice)

Simeon (voice)

Alexander Graham Bell / Thomas Watson (voice) (1 episode)

Pierre Curie (voice) (1 episode)

Jacques (voice) (1 episode)

Maffeo Polo (voice) (1 episode)

Anagnos (voice) (1 episode)

Chanute (voice) (1 episode)

Barrett (voice) (1 episode)

Duke of Milan / Monk (voice) (1 episode)