In "The Veiled Threat", there is a tiny infiltrator/spy-bot that passes for a crab. It's not named, but it's robot form is described as like Frenzy's, but smaller. At first I thought it was Scalpel/"The Doctor" as he's the only one who's small enough to turn into a crab without mass-shifting. But there's another robot I didn't even consider. One who's size is not only correctly tiny, but who's form resembles Frenzy's more so than Scalpel's. You ready? Spoiler WHEELIE!