Stephen Furst, plucked from obscurity while delivering pizzas and cast as "Flounder" in the cult classic "Animal House" has passed away at age 63 due to complications from diabetes. He went on to fame in roles in Babylon 5 and St. Elsewhere. I enjoyed seeing him not be typecast as the chubby sidekick.
http://www.tmz.com/2017/06/17/stephen-furst-flounder-animal-house-dead/
http://www.tmz.com/2017/06/17/stephen-furst-flounder-animal-house-dead/