Sam Neillis already back to work after being treated for stage three blood cancer.

The actor, 75, reveals in his upcoming memoir,Did I Ever Tell You This?

He will still continue to receive the drug monthly for the rest of his life.

Actor Sam Neill from the film “Hunt for the Wilderpeople” poses for a portrait during the WireImage Portrait Studio hosted by Eddie Bauer at Village at The Lift on January 22, 2016 in Park City, Utah.

Sam Neill.Jeff Vespa/WireImage

Just pleased to be alive."

Neill began writing while undergoing treatment last year as a way to keep busy.

“I never had any intention to write a book,” he says.

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