2Nd Update: In an Instagram post Tuesday evening, former Everwood co-star Chris Pratt mourned both Treat Williams, who died Monday, and fellow former cast member John Beasley, who died two weeks ago.

“It’s an incredibly sad season for the cast and crew of Everwood. We’re still reeling from the loss of John Beasley and yesterday we lost Treat Williams as well,” Pratt said. “Both men were exceptional actors, wonderful husbands, fathers and friends. They will be missed tremendously.”

Update: Everwood creator Greg Berlanti has shared a remembrance of his first meeting with Treat Williams following the veteran actor’s death Monday in a motorcycle accident in Vermont. Berlanti posted a tribute on Instagram next to a photo of Williams with Berlanti’s sister. “I can still feel the warmth of your presence,” Berlanti wrote.

“I remember our first lunch like it was yesterday. Myself and my fellow producer...