Coworker lookalike Contest

For many years I have worked with specific people at my workplace. There are a handful that in my eyes are lookalikes with other famous people. I sincerely like these coworkers and in no way mean to disrespect them. I just am impressed with their likeness to somebody else. Which of these is the best match? Again - no disrespect. I consider these folks as friends!

Andrew:










Christian:










Erin:










Casey:










Lynn (Best pic I could find):









Mark:









And once a childhood friend told me I looked like the guy on Mad Magazine:
Gords: