- Bats Right, Throws Right
- Height 6' 0", Weight 185 lb.
- Debut May 9, 1934
- Final Game July 4, 1939
- Born September 8, 1913 in Donelson, TN USA
- Died March 2, 1998 in Nashville, TN USA
Slick Castleman, who pitched six years in the majors for the New York Giants, had two notable years when he went 15-6 in 1935 at the age of 21 and 11-6 in 1937. He also appeared in the 1936 World Series.
Slick is said to have gotten his nickname because he was a slick dresser. He is one of only two major leaguers remembered with that first name, along with Slick Coffman, his contemporary and also a pitcher.
Castleman pitched his last major league game on July 4, 1939, but wasn't released by the Giants until March 1942.
Castleman was referred to at least as often by his real name Clydell as he was by his nickname Slick.
In the midst of his good 1935 season, he broke his hand in batting practice.