<P> He is probably best known for his appearance in the BBC drama series Life on Mars and the final episode of its spinoff Ashes to Ashes as the bartender and confidant , Nelson and Rodney 's friend Chris in Only Fools and Horses . Previously , he played Diesel in all three series of Preston Front he also star in the 2003 Christmas special of My Family . </P>
who did tony marshall play in only fools and horses
Nelson and Rodney 's friend Chris