Sad to hear my friend Harold Ramis
passed away. A brilliant, funny, actor and
director. A wonderful husband and dad.
Big loss to us all. bc

— Billy Crystal (@BillyCrystal) February 24, 2014

No no not Harold Ramis. Worked for him years ago. He was the real deal. Growing up, his work changed my life. He will be missed.

— Jon Favreau (@Jon_Favreau) February 24, 2014

I will be forever grateful for all that Harold Ramis helped bring into this world. His art and vision will be sorely missed.

— Zachary Levi (@ZacharyLevi) February 24, 2014

If a Twinkie represents amount of grief I feel when someone dies, Harold Ramis' death would be a Twinkie 35 feet long weighing 600 pounds.

— Patton Oswalt (@pattonoswalt) February 24, 2014

"I collect spores, molds, and fungus" – condolences to the family and friends of the great Harold Ramis

— Jimmy Kimmel (@jimmykimmel) February 24, 2014

Harold Ramis RIP. no one could ever top him in terms of somehow being Cool & off-the-charts creative and incredibly kind & gracious

— Ron Howard (@RealRonHoward) February 24, 2014

Sorry to learn of the passing of Harold Ramis – he was a wonderful person – a terrific talent & he died much too young

— Larry King (@kingsthings) February 24, 2014

Some of the most influential comedy tv/films in my life came from Harold Ramis' brain. He was incredibly cool the one time I got to meet him

— ʞɔiwbɿɒH ꙅiɿʜƆ (@hardwick) February 24, 2014

Looking at Harold Ramis’ body of work is like looking at every movie that made me laugh when I was growing up. RIP.

— Jason O'Mara (@jason_omara) February 24, 2014