In tribute to his sister-in-law, Kate Spade, actor and comedian David Spade has made a massive donation to a mental health charity.

David Spade is honoring his late sister-in-law Kate Spade by making a significant contribution to one of the US’s largest mental health charities. The actor and comedian has donated $100,000 to the National Alliance on Mental Illness (NAMI), a grassroots mental health organization that offers educational programs and support groups to help improve the lives of the millions affected by mental illness.

“More people suffer from mental health issues than we may realize but no one should ever feel ashamed to reach out for support,” Spade said.

“If you or anyone you know is in need of help or guidance please contact the national suicide prevention hotline at 800-273-8255 or go to nami.org to learn more and help those who may be in need.”

Read more: Kate Spade’s husband writes heartbreaking statement about her recent struggles and death

We are grateful to @DavidSpade for his generous contribution. This donation will allow us to continue to provide support and advance our mission of building better lives for the millions of Americans affected by mental illness.

— NAMI (@NAMICommunicate) June 14, 2018

On June 5, Spade lost his sister-in-law Kate Spade, the famed handbag designer, to suicide aged 55. In tribute to her, he has made the decision to donate to NAMI, the largest grassroots mental health organization in the nation.

The 53-year-old actor had previously spoken out about her death, stating he “still can’t believe it.”

“Fuzzy picture but I love it,” he wrote on Instagram.

“Kate and I during Christmas family photos. We had so much fun that day. She was so sharp and quick on her feet. She could make me laugh so hard. I still can't believe it. It's a tough world out there people, try to hang on.”

Read more: "Hug your loved ones extra tight" Rachel Brosnahan pays tribute to her aunt Kate Spade

Kate Spade was married to David’s older brother Andy Spade for 24 years, although he revealed after her death that they had been separated for the past ten months.

“Kate was the most beautiful woman in the world,” Andy Spade wrote in a heartbreaking letter about her struggles with her health.

“She was the kindest person I’ve ever known and my best friend for 35 years. My daughter and I are devastated by her loss, and can’t even begin to fathom life without her. We are deeply heartbroken and miss her already.

“Kate suffered from depression and anxiety for many years. She was actively seeking help and working closely with her doctors to treat her disease, one that takes far too many lives. We were in touch with her the night before and she sounded happy. There was no indication and no warning that she would do this. It was a complete shock. And it clearly wasn’t her. There were personal demons she was battling.”

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In America, the National Suicide Prevention Lifeline is 1-800-273-TALK (8255).

If you need help, you can also text LISTEN to 741741. The Crisis Text Line will respond 24/7/365.

In Ireland, Samaritans is available 24 hours a day, 7 days a week for anyone struggling to cope. For support please call 116 123 in the Republic of Ireland or 08457 90 90 90 in Northern Ireland.

Kate Spade and brother-in-law David Spade. Instagram/David Spade