Agent Beverly Hecht died of cardiac arrest in Los Angeles Nov. 19. She was 81.Services will be held Sunday at Mount Sinai Hollywood Hills at 10 a.m. Born in Chicago, Hecht came to Hollywood at the suggestion of her screenwriter cousin Ben Hecht and her commercial producer/director brother Sid Hecht. She became an Earl Carroll showgirl and singer before creating her own talent agency in 1969. Among her commercial clients were Sammy Davis Jr., Janet Leigh and Cicely Tyson. She was among the first to work with Drew Barrymore, Debra Winger and Brad Garrett. Hecht retired in 1996, but the agency remains in business.