She was born in New York City, an only child, and attended the Miami University of Ohio in Oxford, Ohio. She began her career as a model and nightclub singer while she studied at the Neighborhood Playhouse. Her acting debut came in 1952 in the Bette Davis musical revue Two's Company, followed by roles in other Broadway productions, such as John Murray Anderson's Almanac, The Fifth Season, and Will Success Spoil Rock Hunter?. She also appeared in such early live TV dramas as Studio One, Producers Showcase, and Appointment with Adventure.

In 1957, she and Julie Newmar appeared on Broadway in the hit musical Li'l Abner. Her album It's Time for Tina was also released that year, with songs such as "Embraceable You" and "I'm in the Mood for Love."

She made her Hollywood film debut in 1958 in God's Little Acre. She became an in-demand leading lady for major stars like Robert Taylor, Richard Widmark and Robert Ryan, often playing somber roles quite unlike the glamorous pinup p