Mindy Sterling was 31 in UFOria when she played the character 'Sister Oma and the Clarions'.
That was over 39 years ago in 1985.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 70, and has starred in 75 movies in total, 72 of those since UFOria was released.
In UFOria, I think Mindy Sterling looks: