Speelsnape

The Speelsnape was a predatory creature on the planet Necros. Although it didn't harm humans, one of the speelsnape's natural enemies was the voltrox.

The creature was best known for its tactic of hiding its head under a rock and pretending nothing could see it, which was what led Vogel, Kara's assistant, to compare Davros to a speelsnape. (DW: Revelation of the Daleks)

The Sixth Doctor said Beep, the sadistic tyrant, was as harmless as a speelsnape. (BFA: The Ratings War)