http://www.dotdotdotcomma.com/motorsport/f1/lookalikes/lookalike.php
Some good ones on there
Class!
Mike
Alonzo - Dennis the Menace??
A colleague at work: -
Uncanny Resemblence
(yes, he's asleep at a curry house after 1 too many beers )
Villeneuve/Slater and Ressler/Milligan are uncanny. Bernie Ecclestone looks like he's been dug up more times than Lurch (I don't like him, Poison Dwarf)