Was fortunate to work with Michael Clarke Duncan on Sin City. A very kind and generous actor. He'll be greatly missed. http://t.co/6kvVEdrG

— Robert Rodriguez (@Rodriguez) September 4, 2012

Will miss you @OfficialMCD Thanks for being so kind & awesome. #GenuineArticle http://t.co/E2MMixHP

— Seth Green (@SethGreen) September 3, 2012

So sad & shocked to hear of the death of Michael Clarke Duncan. Only 54 years old- he never recovered from his heart attack in July RIP sir

— Sherri Shepherd (@sherrieshepherd) September 3, 2012

My prayers go out to @OfficialMCD @omarosa and his family.

— Evander Holyfield (@holyfield) September 3, 2012

Blessed to have had the opportunity to work with Michael Clarke Duncan while he was still with us. He was a kind soul that will be missed.

— Zachary Levi (@ZacharyLevi) September 3, 2012

RIP Michael Clarke Duncan Heaven has an amazing new angel. I will miss your smile most http://t.co/YAwXvoFf

— Holly Robinson Peete ????????♍️ (@hollyrpeete) September 3, 2012

"When something happens, we always say it happens for a reason"
~ Michael Clarke Duncan 12/10/57 - 9/3/12 I'll miss you my brother..

— Dwayne Johnson (@TheRock) September 3, 2012

I will miss my friend, Michael Clarke Duncan. What an incredible soldier in God's Plan.

— Steve Harvey (@IAmSteveHarvey) September 3, 2012

So sad to hear #MichaelClarkeDuncan died! He was a gem of a man & an actor w/ a radiant heart & a big laugh. #RIP

— RainnWilson (@rainnwilson) September 4, 2012

I'll always have the most wonderful memories of Michael Clarke Duncan what a beautiful childlike spirit he forever be missed RIP Michael x

— Natasha Henstridge (@nathenstridge) September 4, 2012