Finney

Finney was a burglar who tried to steal the Doctor's TARDIS and use it to break into banks.

Biography
Finney posed as one of a group of scientists visiting the Third Doctor to case the house. He went into the cellar, but was confronted by the Time Lord. When Finney tried to distract him with a smoke bomb, a fire started, forcing them to take refuge in the TARDIS. Upon dematerialising, the time/space craft was transported to Skaro by a time vector controlled by the Daleks, who planned to turn the Doctor into a humanoid Dalek. After they escaped from the Dalek city, Finney aided the Doctor in using a herd of dinosaur-like creatures to destroy the Daleks. He was then returned to Earth in the TARDIS. (COMIC: The Planet of the Daleks)