How I judge? Not know. Some things understand much. Some things understand little. Lot things understand not.
Thearn is one of the guards in Gruthar's pack in Fallout 2.
Thearn is a typical deathclaw, though what sets him apart from his feral compatriots are his strangely intelligent eyes. He is not particularly intelligent, but he tries. Gruthar trusts him enough to post him as the guard on the entrance level to Vault 13.
Interactions with the player character
Thearn appears only in Fallout 2.