Harry Houdini

Harry Houdini was a famous American magician and escapologist on Earth during the 20th century.

Houdini first met the Doctor in 1890, when the Doctor was in his first incarnation, although this was not their first encounter from the Doctor's perspective. At the time, the Doctor was accompanied by Ben Jackson and Polly Wright. Together, the four of them defeated the Ovids. At some point after this, Houdini met the Third Doctor, and travelled to the future with him and Jo Grant.