Henry Neil Castles (October 1, 1934 – August 4, 2022) was an American NASCAR Grand National and Winston Cup Series driver.
[3] When he was nine, he was gifted a car to drive at a soapbox derby racer by Buddy Shuman, who also gave Castles the nickname "Soapy".
As Castles told the story: "The starter kept doing this, and I was getting real mad, so I just picked up my gun and when I come by the stand the next time I took aim and shot that flag out of his hand.
[4] At the time of his death, his 498 starts in the NASCAR Cup Series were the third-most by a driver who did not have a victory, behind J. D. McDuffie (653) and Buddy Arrington (560).
[5] He later featured in that capacity in Thunder Road (1958),[4] Speedway (1968, doubling for Elvis Presley), The Last American Hero (1973), Greased Lightning (1977), and Six Pack (1982).