Caleb Rochefort

From Tardis Wiki, the free Doctor Who reference

Caleb Rochefort was an actor.

His career improved after he let the Selyoids merge with him. When he thought the Second Doctor might interfere, he gave Polly a gun and used their influence to make her want to kill the Doctor for him. She managed to break their mental hold and shot Rochefort instead. (PROSE: Dying in the Sun)