Helen Shaver was 24 in The Naked Man when she played an uncredited character.
That was over 48 years ago in 1976.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 73, and has starred in 67 movies in total, 65 of those since The Naked Man was released.
In The Naked Man, I think Helen Shaver looks: