How about that c-grade actor from Skyline. That should surely build his career,
How about David Hasselholf?
The guy that hosts the amazing race?

In all seriousness, in TF4, maybe they can spend more money on the script than the actors, that would help the actors much more.
Best character in TF3 was Patrick Dempsey... (isn't he going to be in Avengers 2 as Dr Strange?)