Writer's Block: In a Jam

If you were in trouble or ran afoul of the law, which fictional detective or investigator—from tv, movies, or books—would you want to help you?
In this world: MacGyver.  Who needs to be a billionaire playboy when you can build a fusion reactor out of paperclips, belly button lint, a pair of eyeglasses, and a Swiss army knife?

In a different world: Lord Darcy.