In the spirit of adhering to this post's title, let's all say it aloud together now: Who the hell is he?!? (cue canned laughter)
He's Dick Van Dyke's son. I checked out his IMDb page. Not much; bit parts... appearances on The Dukes of Hazzard, The Love Boat and Mork and Mindy ---- haaaay! Something did jump off the page, though: he's married to Mary Carey.
WTF?!? Sooooo... somebody has a penchant for porn stars! Scandal!
You know daddy Dick (I know, I know... stop) is mortified. Orrrr, perhaps he's in on the action, too. Get it, Dick! Chim-chim-cheroo, old boy! Freak ON, sir.
Checked his Wiki page. Says he's been married to Mary since 1974. Porn Mary was born in 1980. D'oh!
My apologies to Mary Carey Van Dyke.