[3][4][5][6] He was known for playing the recurring role of assistant park ranger Hank Whitfield in the American children's adventure television series Lassie.
[1][2] He was also known for his appearances in the American western television series Cheyenne and as a double for actor Clint Walker.
[1] In 1959, Howdy made his stunt debut in the film The Young Land, which starred Patrick Wayne and Yvonne Craig.
[7] Howdy appeared in the films such as 4 for Texas, The Shakiest Gun in the West, The Chase, Bonnie and Clyde, PT 109 (as Leon Drawdy), Black Gold, Fort Dobbs and Send Me No Flowers.
Howdy died in October 1969 of lung cancer at the Altadena Hospital in Los Angeles County, California, at the age of 48.