In 1944–1945, she was a regular on "The Frank Morgan Show" on NBC radio. As a frequent radio guest, she appeared semi-regularly in 1944 on "The Bob Burns Show" on NBC. She was also a very popular singer with the troops overseas during World War II, and appeared many times on Armed Forces Radio Service (AFRS) broadcasts such as Command Performance and Mail Call. In 1945, she joined the cast of "The Fitch Bandwagon", another popular radio show. In 1950, she starred in her own radio show, "The Cass Daley Show".