Leonardo is Mr. Bogus!
 

that's right i just discovered that Cam "Leonardo" Clarke is the voice of the yellow claymation/animation guy Mr. Bogus from that tv show. interestingly enough Mr. Bogus also wears blue shorts possibly as homage to Leo's bandana color? here's a clip of the show i can totally tell it is Leonardo's voice although sometimes it sounds different but other times with the right pitch i can hear Leo!

http://m.youtube.com/watch?v=jXTbbrrPbdU

Cool story, bro.

I also recall him being on one episode of the G1 ponies. It was that ep where they explained the reason Male Ponies didn't exist was because they were racing each other around the world for a year. Rob Paulsen voiced three of the big brother ponies on that same episode. It's hard to tell though because they all more or less sound alike.

Oh wow I only knew that he voiced Tex! I didn't know he voiced three of them!