The actor died peacefully on Sunday surrounded by his family.
The singer had been battling esophageal cancer.
Arlis, who was a contestant on Kaitlyn Bristowe's season of 'The Bachelorette,' died in January.
The siblings played music together for more than five decades.
The beloved 'Sesame Street' star died on Thursday in New York City.
The musician's father said she struggled with 'depression, trauma, PTSD and drug addiction.'
The beloved actor and comedian died on Wednesday, according to his daughter.
On Thursday, Aariel Maynor pleaded guilty to the December home invasion and shooting.
The actress portrayed pilot Alex Lambert on the hit '90s sitcom 'Wings.'
The 'Glee' alum penned a lengthy tribute to his older brother.
The Korean-American actor had a decades-long career featuring several roles on popular TV shows.
The veteran TV star died on Sunday after two-year battle with cancer.
The actress died Thursday at her home in Woodland Hills, California.
Witt first shared the tragic news of her parents' death in December.