Huh, not a single post. Well, allow me.
1. Bruce Lee: Lee has inspired me in many ways, both physical and mental. He's who I looked up to while training in exercise and reading philosophy books. He made me strive for greater things and to become my own person.
2. Stephen Hawking: Made me realize that, just because the doctors say you won't live long, doesn't mean they're right. He surpassed his life expectancy from ALS, something that shut most of his body down. He can still think and use a computer to speak, continuing to inspire and learn.
3. Jim Carrey: For having an incredible funny personality. He's known as the master of impersonation (in my opinion), being able to study someone else's personality and mimic it in a funny way. His face muscles are so flexible that he can make himself look like someone else. He's also extremely energetic in his performance in shows or in movies.
Most comedians I look up to as well: Robin Williams, Adam Sandler, Jimmy Fallon, Chris Farley and possibly more that I can't think of.
4. Jackie Chan: For being a funny martial artist (see how I mixed them?). He's an awesome stunt performer and martial artist. He's known for using his surroundings as a weapon more that his body, or even without fighting at all sometimes.