In the 1980's, he guest starred in several hit television shows and his film roles, although still small, started to get some notice with his work in John Carpenters wonderful remake of The Thing as well as Sweet Dreams with Jessica Lange.
However, it wasn't until the early 1990's with the recurring role of Miles, the feared and respected ad agency boss on Thirtysomething, that people really started to take notice of the talents of David Clennon. It was a role that proved to be so popular he was brought back to revise it in the series, Once and Again.
With the success of Thirtysomething, David Clennon went from being a working actor to a working actor that you notice. And now going back and looking at some of the smaller roles from his past, it's a wonder he wasn't noticed sooner. He's a fun actor to discover. And I suggest you get familiar with his work if you already haven't.