Loagen Ruckdeschel is a character in Wasteland 2.
Loagen will take your side if you attack the Mad Monks at Outpost One. If he spots you along with Brother Shapiro when you near him, he and his men will turn hostile.
Trying to talk to him twice or exhausting two dialogues otherwise, will also make them turn hostile. If you inform Brother Franks about their location, they'll be gone.