Kevin Jones
From Tardis Wiki, the free Doctor Who reference
Kevin Jones was a train driver in London in 2011. He helped Donna Noble to escape the Koggnossenti. He drove a tube train into the Koggnossenti power source.
He believed that the Tenth Doctor's clothes made look like he worked in men's wear.
Donna found him attractive. She nicknamed him "Mr Muscles". (AUDIO: Technophobia)