Lee Meriwether was 23 in 4D Man when she played the character 'Linda Davis'.
That was over 65 years ago in 1959.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 89, and has starred in 41 movies in total, 39 of those since 4D Man was released.
In 4D Man, I think Lee Meriwether looks: