Richard Crane

Capt. Cyrus Harding

Marshall Reed

Jack Pencroft

Karen Randle

Rulu of Mercury

Ralph Hodges

Herbert 'Bert' Brown

Gene Roth

Pirate Capt. Shard

Hugh Prosser

Gideon Spillet

Leonard Penn

Capt. Nemo

Terry Frost

Ayrton - The Wild Man

Rusty Wescoatt

Moley - Shard Henchman

Bernie Hamilton

Neb

William Fawcett

Mr. Jackson

George Robotham

Mercurian

Stanley Blystone

Confederate Officer

Roy Butler

Thug in Park

Frank Ellis

Pirate

Knox Manning

Narrator (voice)

Zon Murray

Thug in Park

Frank O'Connor

Confederate Officer

Sid Ross

Mercurian

Tom Tyler

Union Dispatch Rider

Anthony Warde

Confederate Officer

Pierre Watkin

Confederate Officer