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.[3] He also wrote for television programs including Fat Albert and the Cosby Kids, The Smurfs, Swift Justice and The Young Riders.[4][5][6]
William Hasley | |
|---|---|
| Born | 1947 or 1948 Pittsburgh, Pennsylvania, U.S. |
| Died | (aged 78) |
| Occupations |
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| Spouse | [1][2] |
Hasley died on June 6, 2026, at the age of 78, after being found near Runyon Canyon.[7]
References
edit- ↑ "Riker: On a roll in Hollywood". Syracuse Herald-Journal. Syracuse, New York. July 25, 1984. p. 87. Retrieved June 11, 2026 – via Newspapers.com.

- ↑ Harter, Clara (June 9, 2026). "Hiker who died in Runyon Canyon ID'd as Hollywood screenwriter, pal of Caitlyn Jenner". Los Angeles Times. Retrieved June 11, 2026.
- ↑ Saperstein, Pat (June 9, 2026). "William Hasley, Screenwriter Who Co-Wrote Book With Caitlyn Jenner, Dies on Hollywood Hiking Trail". Variety. Retrieved June 11, 2026.
- ↑ "William Hasley". Television Academy. Retrieved June 11, 2026.
- ↑ Saunders, Angel (June 9, 2026). "William Hasley, Caitlyn Jenner Biographer, Found Dead on California Hiking Trail". People. Retrieved June 11, 2026.
- ↑ "(untitled)", The Hollywood Reporter, vol. 312, no. 18–34, Wilkerson Daily Corporation, 1990
- ↑ Watts, Marina (June 9, 2026). "Caitlyn Jenner biographer and Hollywood screenwriter found dead on hiking trail". Entertainment Weekly. Retrieved June 11, 2026.