Tim Wakefield was the MLB knuckleballer who won 200 major league games, including 186 with the Boston Red Sox.
I like this line from ESPN:
Wakefield was also an eight-time nominee for the Roberto Clemente Award that goes to a ballplayer for exemplary sportsmanship and community involvement, winning it in 2010. Melany Duval, the Chief Philanthropy Officer at The Jimmy Fund, said Wakefield was a frequent visitor on the adult and pediatric cancer floors and met with the teen patients on their annual spring training trip.