Carroll William Sembera
- Bats Right, Throws Right
- Height 6' 0", Weight 155 lb.
- School Trinity University
- High School Shiner High School
- Debut September 28, 1965
- Final Game April 26, 1970
- Born July 26, 1941 in Shiner, TX USA
- Died June 15, 2005 in Shiner, TX USA
Carroll Sembera had a long career in professional baseball, including 99 games as a pitcher over 5 major league seasons and many years as a scout. He notched the first save in Montreal Expos history in 1969.
Born in Shiner, TX (he also died in Shiner, TX), he was a strikeout artist at Shiner High School, once getting 24 strikeouts in 7 innings.
Beginning with the Houston Colt .45's, he was the same age as Jimmy Wynn and two years old than Joe Morgan and Rusty Staub. In 1966 his 3.00 ERA was one of the lowest on the squad. The same was true in 1969, the inaugural year of the Montreal Expos, when he had a 3.55 ERA on a team that had an overall ERA of 4.33.
After his playing career ended, Carroll Sembera was a scout for the Major League Baseball Scouting Bureau from 1982-93 and then for the Seattle Mariners for 11 years, serving as Mariners Midwest Scouting Coordinator and National Cross Checker.
He went to Round Rock to watch a ball game on the day he died.