Bruce Kastulo Chen (陳用彩) (born June 19, 1977 in Panama City, Panama) is a Major League Baseball (MLB) pitcher for the Kansas City Royals.
Chen is of Chinese descent. His paternal grandfather, Kuen Chin Chan Lee, joined his brothers and other relatives in Panama at age 9. Bruce's maternal grandmother, Kuen Yin Liu de Laffo, was born in Panama, but her family had to return to China after fire destroyed their home. After years of hard labor, she was able to return to Panama at age 24. Both of Bruce's grandparents have died, but he hopes to reconnect with his Chinese roots someday. Bruce's older brother, Greg Kateso Chen, is in the minor league affiliate of the Boston Red Sox organization.
Bruce Chen attended Panamerican Institute and studied civil engineering during the baseball off–season at Georgia Tech.