Astrid Peth (Kylie Minogue)

Astrid Peth (Kylie Minogue) was working as a waitress on a doomed liner
The Titanic

K9 (John Leeson - voice)

John Leeson plays faithful robotic companion K9.
Highly intelligent, and armed with a deadly nose laser too!

Sarah Jane Smith (Elisabeth Sladen)

Elisabeth Sladen plays Sarah Jane Smith, the investigator with an instinct for adventure.
She and the Doctor are old friends.

Captain Jack Harkness (John Barrowman)

John Barrowman plays a dashing intergalactic rogue, Captain Jack Harkness,
now running the Cardiff branch of Torchwood.

Jackie Tyler (Camille Coduri)

Camille Coduri plays Rose's Mum, Jackie Tyler.
Always ready with a conga and a shepherd's pie.

Mickey Smith (Noel Clarke)

Noel Clarke plays Mickey Smith, Rose's boyfriend.
Conspiracy theorist, computer expert and lovesick.