The grunts of team skull are: Tupp, Rapp and Zipp.
(This is with Pokémon)
Team Skull debuted in Alola to New Adventure!, where three Team Skull Grunts, Tupp, Rapp, and Zipp, were seen harassing Kiawe in front of the Pokémon School. Though the three Grunts outnumbered Kiawe and Ash, the two Trainers emerged victorious through the combined efforts of Ash's Pikachu and Kiawe's Turtonator.
The ones who mostly will be victem of their bothering are: Ash, Kiawe, Sophocles, Lilly, Lanna and Mallow.