Julie Adams was 26 in Creature from the Black Lagoon when she played the character 'Kay Lawrence'.
That was over 70 years ago in 1954.
In 2019 she died aged 92, starring in 53 films in her career, 34 of those after Creature from the Black Lagoon was first released. If she were alive today she would be 97.
In Creature from the Black Lagoon, I think Julie Adams looks: