Aren't they though: June 2013

Not only did Cumberbatch have to follow an animal act, but Letterman, who began by referring to Star Trek as Star Wars, asked his guest—a veteran of twenty movies, including Tinker Tailor Soldier Spy and War Horse—if he was new to major motion pictures. (The actor, being the polite, Harrow-educated Brit that he is, jumped in to save his host: “This major? Yes!”) I tell Cumberbatch that, given Letterman’s cluelessness, I was surprised there weren’t the usual efforts to wring a laugh from his name.
“Well, since he couldn’t even say it,” says the actor. “At one point, before I came on, he announced me as ‘Benedict Cumber… ,’ and his voice sort of trailed off. My friends said, ‘What the fuck was that? It was like his batteries ran out.’ But that’s the sort of thing that’s been happening here, where I’m not as well known,” he continues. “It’s strange to be 36 and still explaining the weirdness of my name.”

http://www.vulture.com/2013/05/benedict-cumberbatch-in-star-trek.html (via cumbertrekky)