Zach Braff has led the tributes to Chris Huvane following his death.
The former Scrubs actor, 46, called Chris his "manager and best friend" in an emotional message and revealed he had "tried and tried to help" him for years as he battled "severe depression".
It's reported that Chris died by suicide at the age of 47 and his management company confirmed his death on Monday.
Posting to Instagram, Zach said he felt "the lowest I have felt in some time".
Captioning a picture of his friend he said: "I tried and tried to help him.
"Each time I thought my pep-talk or idea for a new regimen might make a difference.
"He was so beloved in this town, so many others did the same. I promise you, you could not have met a better man.
"Those of us left behind can't help but think of what else we could have done. What if I'd moved in with him? What if I'd said this or that?"
"My mom (a psychologist) said something that brings tears to my eyes even as I type this.
"She said 'Those he left behind have to to suffer, but Chris' suffering is finally over.'"
Zach added: "Please post suicide hotline numbers and resources in your country below.
"Please be kind in the comments. This is the lowest I have felt in some time. I love you Chris. The suffering is over."
Management 360, for whom Huvane worked, also paid tribute to their "fiercely loyal" friend and colleague.
They posted to their social media pages: "This weekend, we lost Chris Huvane. He was a trusted colleague and an incredible manager, but most importantly, he was our dear friend.
"Chris led by example, with kindness and an open heart. He was fiercely loyal to and protective of his community.
"He had a remarkable ability to make people feel like they belonged. He had an infectious laugh.
"Management 360 and the people inside its walls will never be the same without him, but will do our best to honour his spirit and legacy."
It's reported that Chris also worked with a host of other high profile clients including the late Chadwick Boseman and Margot Robbie.
*If you're struggling and need to talk, the Samaritans operate a free helpline open 24/7 on 116 123. Alternatively, you can email jo@samaritans.org or visit their site to find your local branch
