Once again, good ol' IMDb has faulty information when it comes to actor identification.....
'THE NAME OF THE GAME'
"LOVE-IN AT GROUND ZERO"
When you look through the cast list for this episode, you'll see Al Molinari - legendary for playinng Murray the Cop ('The Odd Couple') and Al on 'Happy Days' - listed as being uncredited for the episode.
He's uncredited because he's not even in it!
The IMDb does list Fabian Dean among the supporting players and he's the actor whose character must have been confused with Molinari by a contributor. Here's Dean from the episode in which he played a head shop owner on the Las Vegas strip who was questioned by Howard Publications editor Andy Hill and private eye Ed Wallaby:
At best he could have played Al Molinari's brother.
The Aveleyman site has a page dedicated to pictures of Fabian Dean, but they don't have this episode even listed among his credits. Dean was born in the same year as my Dad, 1929, but he died relatively young in 1971.
Hopefully somebody at IMDb will see this and set the record straight....