Solid actor, who I mostly remember as Pappy Boyington in Baa Baa Black Sheep.
https://www.nbcnews.com/news/obituaries/tv-actor-robert-conrad-star-wild-wild-west-dead-84-n1133111
https://www.nbcnews.com/news/obituaries/tv-actor-robert-conrad-star-wild-wild-west-dead-84-n1133111