How old was Jack Nicholson in Psych-Out?

Age is one of those behind-the-scenes facts that fans love to uncover. That knowledge can reshape how we view their performance. Let’s dive into that fascinating detail.

In Psych-Out, Jack Nicholson took on the role at the age of:

30 years old

Our analysis shows that this was the celebrity’s true age during filming.

The shown age corresponds to the celebrity’s age at the very start of the release year of Psych-Out:

January 1, 1968

And the date of birth of Jack Nicholson:

April 22, 1937

Movies tend to be released within a year of filming, so Jack Nicholson may have been one year off from the listed age in certain scenes.