I just want to get everyone's opinion on who they think is the best actor or actress to ever act on Lost. They can be anyone from any season. Whoever you think does or did the best acting performances on Lost. If you do not know the actress or actor's name from the show, you can just say the character's name. My pick would be Michael Emerson who plays Ben. I just think he does a great job portraying this character to us and bringing him to life. My second pick would have to be Terry O'Quinn who plays Locke/MIB. Who do you guys think is the best?