Father Diodor

 is a character who appears in S.T.A.L.K.E.R.: Lost Alpha.

"Took part in the war in Afghanistan. Formerlt an atheist, but after surviving a Mujahideen ambush, he emerged a religious man. After the war in Afghanistan, he emigrated to Poland where he enrolled into a theological seminary. Having graduated from the seminary, he preached at the Catholic church in Lvov. After the explosion at the Chernobyl NPP, he volunteered to help the victims. In the last few years he has been preaching in the Zone"

- PDA contact biography

Overview

 * Father Diodor may be first located in the basement of the Loner Village in Yantar, where he is to all intents 'trapped'.
 * The player may open this door, after which this NPC enters into 'patrol mode' and wanders extensively over south-eastern Yantar.