The actor was known for his role as ‘Squiggy’ on the popular sitcom.

Lander died Friday in Los Angeles from complications due to multiple sclerosis.

The actor was diagnosed with the illness in 1984, but did not reveal it publicly until 1999.

David Lander

Credit: David Livingston/Getty Images

“Most people have no idea what MS is,“the actor said in 2007.

At Carnegie, Lander metMichael McKean, who would become a longtime collaborator and his costar onLaverne & Shirley.

Soon,Laverne & Shirleyco-creator Lowell Ganzsaidin 2011, the writers “put them ineveryepisode.

We closed up their writers office, and they were part of the cast.”

“You have more freedom playing people you hate.

Lander is survived by Kathy Fields, his wife of more than 40 years, and their daughter Natalie.