Rodney

Todd Hulbert told the Eighth Doctor that he didn't expect his extraterrestrial clients "to know the first thing about Earth", but found that half had picked up TV in deep space and would break into impressions of Del Boy and Rodney at the slightest provocation". (AUDIO: Human Resources)

Behind the scenes

 * Although not mentioned in the DWU, Rodney is a character from Only Fools and Horses.