Capt. Cyrus Harding
Jack Pencroft
Rulu of Mercury
Herbert 'Bert' Brown
Pirate Capt. Shard
Gideon Spillet
Capt. Nemo
Ayrton - The Wild Man
Moley - Shard Henchman
Neb
Mr. Jackson
Mercurian
Confederate Officer
Thug in Park
Pirate
Narrator (voice)
Thug in Park
Confederate Officer
Mercurian
Union Dispatch Rider
Confederate Officer
Confederate Officer