Tylot

Formerly one of Nekron‘s undead soldiers sent by Krona to battle the Green Lantern Corps, Tylot became a member for a day when he decided to help the Green Lanterns defeat his master.  Tylot was astounded by the way the Green Lanterns acted towards each other, and the respect they gave their masters, the Guardians of the Universe.  In battle, Tylot saved Arisia of Graxos IV and offered her to Hal Jordan of Earth, to prove he was not an enemy of the Green Lanterns. This act surprised Jordan and he gave Tylot a power ring from a fallen comrade.  When Nekron and Krona were finally defeated, Tylot faded away.