Family sources confirm that Bain passed away Monday night at a retirement home in Livermore, Calif, of natural causes. Bain would have celebrated his 90th birthday in February.
In a statement to E! News, the actor’s former co-star Todd Bridges says that he is “deeply saddened,” but remembers Bain as incredible individual.
“In addition to being a positive and supportive father figure both on and off-screen, Conrad was well-loved and made going to work each day enjoyable for all of us,” Bridges said. “He will be missed, but never forgotten.”
Bain is also recognized for his character Dr. Arthur Harmon in Maude– a spin-off of All In the Family starring Bea Arthur– among other roles.
He is survived by his three children– Jennifer, Mark and Kent.