William Hasley
American biographer and television writer (1947/1948–2026)
About William Hasley
William Hasley was a writer and screenwriter.
William Hasley (1947 or 1948 – June 6, 2026) was an American biographer and television writer. He was best known for co-writing the motivational book Finding the Champion Within along with Caitlyn Jenner. He also wrote for television programs including Fat Albert and the Cosby Kids, The Smurfs, Swift Justice and The Young Riders.
Hasley died on June 6, 2026, at the age of 78, after being found near Runyon Canyon.
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Frequently asked questions
Who was William Hasley?
American biographer and television writer (1947/1948–2026)
When did William Hasley die?
William Hasley died on 6 June 2026.
What was William Hasley's occupation?
William Hasley was a writer and screenwriter.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). William Hasley. https://biography.guide/william-hasley/
MLA: "William Hasley." Biography.guide, https://biography.guide/william-hasley/.
Chicago: "William Hasley." Biography.guide. https://biography.guide/william-hasley/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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