Yay! McDreamy and Transformers! It's a nerd girls smorgasboard :hectic1:

Patrick Dempsey: From McDreamy To 'Transformers 3' - omg! news on Yahoo!

Patrick Dempsey is going from doctor to action hero.

The actor, who plays Derek "McDreamy" Shepherd on "Grey's Anatomy," has signed on to star in "Transformers 3," a rep for Paramount Pictures, the studio behind the film, confirmed to Access Hollywood on Tuesday.

Patrick will play the boss of Mikaela Banes, played by brunette beauty Megan Fox...

Patrick's character is said to be very important to the drama in the third film.