Pam Dawber, Robin Williams’ Mork & Mindy co-star, and producer Garry Marshall have released statements on the comedian’s tragic death.

Mork & Mindy Fans Honor Robin Williams

Williams first reached fame playing Mork on Mork & Mindy, a role he originated in a two-episode arc on Happy Days. Though Williams went on to have a prolific career in both film and stand-up, winning an an Oscar for Good Will Hunting, fans have created a memorial for the beloved actor in front of the Mork & Mindy house in Boulder, Colo.

#Vigil outside #MorkandMindy house in #Boulder @Colorado, #RIPRobinWilliams #RobinWilliams #epitaph @TMZ @EW @etnow pic.twitter.com/bxcgELNvNp

— Mariano Oreamuno (@Oreamuno) August 12, 2014

“Robin was hands-down a comedy genius and one of the most talented performers I have ever worked with in television or film…I will forever be in awe of his timing, his talent and his pure and golden creativity…. He was my friend and it is rare that you ever have a friend that is also a genius,” Marshall said in a statement.

Pam Dawber Addresses Robin Williams' Death

Dawber, who starred on the historic sitcom opposite Williams from 1978 to 1982, simply said, “I am completely and totally devastated. What more can be said?”

Dawber had just reunited with Williams onscreen, appearing in an episode of Williams’ sitcom, The Crazy Ones as a girlfriend of Williams’ character Simon. Behind the scenes, Williams and Dawber recalled their time working together on Mork & Mindy 30 years prior. In an interview with ET, Williams, known for his tendency to improvise, joked about how crazy he would go on set, saying, “God bless her, she was my rock.”

Sarah Michelle Gellar Remembers Robin Williams

Williams’ The Crazy Ones co-star Sarah Michelle Gellar also released a statement honoring her TV dad, calling him “the Father I had always dreamed of having.”

“My life is a better place because I knew Robin Williams. To my children he was Uncle Robin, to everyone he worked with, he was the best boss anyone had ever known, and to me he was not just an inspiration but he was the Father I had always dreamed of having. There are not enough adjectives to describe the light he was, to anyone that ever had the pleasure to meet him. I will miss him everyday, but I know the memory of him will live on. And to his family, I thank them for letting us know him and seeing the joy they brought him. Us crazy ones love you. God, grant me the serenity to accept things I cannot change, the courage to change the things I can, and the wisdom to know the difference,” reads Gellar’s statement.

pic.twitter.com/4Pyx4Kfuxe

— Sarah Michelle (@RealSMG) August 12, 2014

The Crazy Ones castmember James Wolk and guest-star Josh Groban were also among Williams’ recent co-stars to remember him on Twitter.

Robin was a light, role model, & inspiration to me. More so, he was a friend. I will miss him dearly. My heart goes out to his family

— James Wolk (@JamesWolk) August 12, 2014

Stunned. Devastated. I treasure my time with him. Robin was and will always be an original and a brilliant kind soul.

— josh groban (@joshgroban) August 11, 2014