The Amazing Mysterium is a fictional character portrayed by Sean Astin in the TV series The Librarians.
In the first episode they appeared in, titled And the Tears of a Clown (season 3), they were 45 years old.
They appear in 1 episodes out of a total of 42 aired
Episodes1
And the Tears of a Clown
episode S3.E5 december 2016The Librarians investigate a mysterious traveling carnival and discover how dangerous their collection of magical artifacts could be.