Bob Hoskins

as Professor Challenger

2 episodes

James Fox

as Professor Summerlee

2 episodes

Tom Ward

as Lord Roxton

2 episodes

Matthew Rhys

as Edward Malone

2 episodes

Elaine Cassidy

as Agnes Cluny

2 episodes

Peter Falk

as Theo Kerr

2 episodes

Nathaniel Lees

as Chief

2 episodes

Tamati Rice

as Achille

2 episodes

Nicole Whippy

as Maree

2 episodes

Inia Maxwell

as Indian Leader

2 episodes

Tessa Peake-Jones

as Mrs. Summerlee

2 episodes

Tim Healy

as McArdle

2 episodes

Joanna Page

as Gladys

2 episodes

Tom Goodman-Hill

as Arthur Hare

2 episodes

Robert Hardy

as Professor Illingworth

2 episodes