In which the actors are NOT their characters

Let me just put it simply. Molly and Sherlock are all but polar opposites of how their actors are. Loo is a total doofus who curses like a sailor and promotes feminism awesomely. Ben is a clueless dork who just wants to bring out the best in people.

so yeah.

Sherlock (c) BBC&Mofftiss
Loo&Ben (c) themselves