Impmon (Tamers)

Impmon is a small demon digimon from the fourth season of the animated television series. He has been descriped as a humanoid Veemon, though resembles the more classic cat or dog associated with a witch.

In Digimon Tamers, Impmon is a nasty creature who spends most of his time picking on the Tamers and their digimon.

He seems quite oblivious to Renamon's efforts to be his friend.