If you're talking about a dummy named Bob since Johnson was indeed a ventriloquist (in case anyone out there didn't know), no, he wasn't. However, there was a dummy that accompanied him named "Squeaky." The dummy was even given co-host billing (no, not Johnson; Squeaky!).
A pretty lame idea, if you ask me, to have a dummy on a game show like this, and even weirder to have actual conversations between the host, the celebrities, and the dummy. Hmm...wonder why this show tanked?
Anthony