William Katt Autographs
William Theodore Katt (born February 16, 1951) is an American actor and musician. He is best known for his starring role as Ralph Hinkley/Hanley on the ABC television series The Greatest American Hero (1981–1983).
Katt first became known for playing Tommy Ross, the prom date of Carrie White in the original film version of Carrie (1976). He subsequently starred in films such as First Love (1977), Big Wednesday (1978) and Butch and Sundance: The Early Days (1979). Between 1985 and 1988, he starred in nine Perry Mason television films alongside his mother Barbara Hale, who reprised her role as Della Street from the television series Perry Mason.
Katt was born in Los Angeles to actors Bill Williams (birth name Herman August Wilhelm Katt) and Barbara Hale. His paternal grandparents were emigrants from Germany, while his mother had Irish and Scottish ancestry. He grew up in the San Fernando Valley and began acting as a teenager, sometimes appearing with his parents. He graduated from Army and Navy Academy, Carlsbad, California.
Read more about William Katt on Wikipedia
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Current items with a signature of William Katt
These are the most current items with a signature of William Katt that were listed on eBay and on other online stores - click here for more items.
| Picture | Item Title | Price | Store |
 | William Katt Signed 8x10 Photo Autographed House | $34.97 |  |
| William Katt Signed 8x10 Photo Autographed House | $34.97 | |
| William Katt Signed 8x10 Photo Autographed House | $34.97 | |
Traded items with a signature of William Katt
The most expensive item with a signature of William Katt (Greatest American Hero #1 Highest Graded Copy PGX 9.4 autograph William Katt) was sold in April 2026 for $310.00 while the cheapest item (G A HERO SIGNED LOT WILLIAM KATT CONNIE SELLECA & PRINT) found a new owner for $0.99 in November 2009. The month with the most items sold (9) was June 2025 with an average selling price of $85.99 for an autographed item of William Katt. Sold items reached their highest average selling price in February 2024 with $299.99 and the month that saw the lowest prices with $1.99 was February 2016. In average, an autographed item from William Katt is worth $35.80.
Most recently, these items with a signature of William Katt were sold on eBay - click here for more items.
