Edward Callaghan

From Tardis Wiki, the free Doctor Who reference

Edward Callaghan was a security guard at the offices of MacDonald, O'Brien and Withers.

One night, his body and those of his co-workers, David Lampton and Gavin Jones, were taken over by the Eighth Doctor, Charley Pollard and C'rizz, who used them to defeat Darrakhaan. (PROSE: After Midnight)