[2] At the age of 20, Benzell made her debut in a Sunday concert in Mexico City on December 3, 1944, during which she played the role of Zerlina in Mozart's Don Giovanni and the Queen of the Night in The Magic Flute.

[3][4] Additional Met credits that Benzell compiled include performances in La Bohème, Mignon, Rigoletto, Der Rosenkavalier, Carmen, and Barber of Seville.

In 1951 she co-starred in The Pet Milk Show on radio with Jack Pearl, which aired on Tuesday nights on NBC, and also featured Cliff Hall and Gus Haenschen's Orchestra.

[9] She appeared as a panelist on both the daytime and primetime editions of the game show To Tell the Truth, and was a guest star on the short-lived DuMont series Off the Record alongside Zero Mostel and Joey Faye.

[2] Benzell died of an undisclosed form of cancer on December 23, 1970, at North Shore University Hospital in Manhasset, New York, at the age of 52.