Traitor noun – One who betrays a trust or an allegiance. Sneak and traitor are semantically related in person who is disloyal topic. Sometimes you can use "Sneak" instead a noun "Traitor". Nearby Words: trait, traitorous, traitress
In Skyrim, Mercer Frey, the leader of Riften Thieves Guild who turns out to be a traitor and the main antagonist of the Thieves Guild questline will follow the Dragonborn in a brief quest, although you cannot command him and you cannot sneak with Mercer, nothing stops you from leading him around.