From Halopedia, the Halo wiki
Inslaan 'Gadogai is a mysterious, short-tempered Sangheili warrior serving the Keepers of the One Freedom. He was a veteran of the Silent Shadow during the time of the Covenant, before rebelling against the High Prophet of Truth and Tartarus' Jiralhanae leadership at the onset of the Great Schism. By 2559 he was a mercenary serving the Banished as an eye for Escharum, before leaving them in favor of Castor and his Keepers of the One Freedom.
List of appearances