Cathy Lewis could make radio comedy sound effortless and radio drama sound dangerous, sometimes within the same week. Born in Spokane and drawn first toward singing, she worked in Chicago radio before establishing herself in Hollywood’s dense community of microphone actors. Her career became a demonstration of how little a strong radio actress needed to depend on one public image.

Millions of listeners knew her as Jane Stacy on My Friend Irma. Jane was the practical roommate living beside Marie Wilson’s gloriously impractical Irma, but Lewis did more than supply common sense. Her dry reactions gave the comedy its scale. Without Jane’s awareness of how absurd the situation was, Irma’s innocence would have had nothing firm to collide with.

At the same time, Lewis was building a reputation in Suspense and other serious radio drama. Her articulation and emotional control made her useful opposite major Hollywood stars, but she did not need celebrity billing to command a scene. Suspense could cast her as victim, wife, conspirator or frightened witness, and the audience did not have to be reminded that the same woman had spent the week playing a comic roommate.

Her marriage to actor-producer Elliott Lewis became one of radio’s most important creative partnerships. The two wanted a program in which they could control the material rather than simply be cast inside somebody else’s format. On Stage, which began in 1953, gave them that room. Week after week they became different people in comedy, mystery, westerns, romance and drama, treating radio acting itself as the attraction.

That concept says more about Cathy Lewis than a list of roles can. She did not need a signature character to justify the show. The premise was that she and Elliott were good enough actors to make the next story the identity. As television absorbed network audiences, On Stage also became an argument for what radio could still do better: create a completely new world without sets, costumes or visual continuity from one week to the next.

Lewis later worked in television and film, including versions of My Friend Irma and a recurring role on Hazel. She died in 1968, leaving a radio career whose density is easy to underestimate because so much of it was repertory rather than star vehicle work.