[1] Subsequently, Molinaro also played Al's twin brother priest Father Anthony Delvecchio.

When Joanie and Chachi move back to Milwaukee, Al and Louisa remain in Chicago.

[2] For much of the series, Al would talk about his former love, Rosa Coletti, and how she left him for a tie salesman.

Molinaro was the only cast member from the show to record new content for the music video, while the rest were edited in through archival footage.

The character also made an appearance on the Robot Chicken episode "Celebutard Mountain", but was voiced by Adam Talbot.