Stephen Furst, best known for playing the character Flounder in the classic frat movie Animal House, has passed away at age 63.

Furst, who had dealt with diabetes for years and spent time as a spokesman for the American Diabetes Association, is said to have passed away at his home in Ventura County, California due to complications from the diseaseIn a message left by Furst's sons on his Facebook page, they stressed to remember their father not by mourning his passing, but by celebrating his life:

Steve has a long list of earthly accomplishments. He was known to the world as an brilliant and prolific actor and filmmaker, but to his family and many dear friends he was also a beloved husband, father and kind friend whose memory will always be a blessing.

To truly honor him, do not cry for the loss of Stephen Furst. But rather, enjoy memories of all the times he made you snicker, laugh, or even snort to your own embarrassment. He intensely believed that laugher is the best therapy, and he would want us to practice that now.

If you knew him personally, remember his gift for lighting up a room. And no matter who you are, when you think of Steve, instead of being sad, celebrate his life by watching one of his movies or use one of his bits to make someone else laugh - really, really hard.

Though his iconic role was as "a real zero" of a freshman in college, there were lots of people sad to hear of Furst's passing, as they shared their grief on social media.

Apart from his famous role in Animal House, Furst was best known for playing Dr. Elliot Axelrod in the 1980s television series St. Elsewhere, as well as his spell as Vir Cotto on Babylon 5 in the mid-90s.