Sam Simon, the co-creator of hit animated television series The Simpsons, is set to give his entire fortune away to charity.

Simon was diagnosed with terminal colon cancer two years ago and has been preparing to donate his money ever since.

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The 59-year-old, who has an estimated fortune of $100 million, has no children and wishes to leave his millions to various charities.

Simon’s passion lies in animal welfare but the majority of his money will go to the Sam Simon Foundation, which provides service dogs to veterans and food to families in need.

A caricature of Simon from a Halloween episode of The Simpsons.

Simon has also been working closely with PETA to protect and liberate animals from abuse.

“I think that my passion for the animals and against animal abuse is based on the knowledge that these creatures who feel and think can’t speak for themselves and they’re dependent on us for that,” he said in an interview with NBC’s Maria Shriver.

“And so I feel it’s my responsibility to speak for those that can’t speak for themselves.”

The multimillionaire said he initially struggled with his illness, but is now happier than he’s ever been.

“Cancer is a horrible disease. I am struggling with it,” Simon said.

“It’s everything that everybody always tells you. It’s a journey, it’s a fight. But, if you want publicity and you want to pick up girls, then cancer is the greatest thing in the world.”

“Somehow, I ended up surrounded by people that love me and take care of me and will do anything for me,” he said. “It’s a good feeling. That’s called happiness.”