Chris Pratt is mourning the recent losses in his former Everwood family.

The actor starred in four seasons of the popular WB show long before his Parks and Recreation role led to global fame with the Guardians of the Galaxy franchise and Jurassic World films and said Tuesday that his former co-stars wouldnt be forgotten.

Its an incredibly sad season for the cast and crew of Everwood, Pratt wrote on Instagram . Were still reeling from the loss of John Beasley , and yesterday we lost Treat Williams as well. Both men were exceptional actors, wonderful husbands, fathers and friends.

He continued, They will be missed tremendously.

Beasley, who starred in all four seasons with Pratt, died in late May after a brief and unexpected illness, said his manager . The 79-year-old was best known for his roles in iconic films like The Mighty Ducks (1992) and The Mandalorian series.

Williams, who played Dr. Andrew Brown in Everwood, was riding his motorcycle Monday in Vermont when an SUV suddenly turned in front of him. The 71-year-old was thrown from his bike and pronounced dead after being airlifted to a New York hospital.

I learned a great deal from working with each of them, Pratt wrote in his tribute, which included black and white photos of Beasley and Williams. The Beasley family and Williams family will be in my familys prayers. May we see you again, gentlemen. God bless you.