It definitely didn't happen in the first season. And looking back to 1983, I don't think any interaction with voice actors from the Little Rascals cartoon series ever occurred. During the second season, leading into the lone Richie Rich segment, there were two versions of the coming up next bumper. First version had Richie Rich roller skating on the sidewalk wearing a helmet and kneepads, and accompanied by Dollar, and possibly with Monchhchis in a tree above. But in the second version, one of the Monchhichis was speaking, and showed Monchhichis in a tree up close, then a kite depicting a dollar bill was zooming towards the Monchhichis, controlled by Richie Rich on the ground, accompanying Dollar the Dog. Those bumpers were abolished in January 1984 when the package show was split up into standalone half-hour "Monchhichis" and "The Little Rascals/Richie Rich Show" - which could imply that the series would not be renewed for another season.
Interesting note: The version 1.0 bumper was used mostly in odd-numbered episodes, and version 2.0 was mostly used on even numbered episodes. However, Episode 12 (the rebroadcast of "Cap'n Spanky's Showboat") did use the version 1.0 bumper, and Episode 13 ("The Zero Hero") did use the version 2.0 bumper.