Birthdate: August 10
Affiliations: Marleyan military/ Warriors
Former ocuppation: Warrior Candidate (戦士候補生 Senshi Kouho-sei)

Marcel Galliard was the older brother of Porco Galliard and a childhood friend of Reiner Braun, Bertholdt Hoover and Annie Leonhart. He was part of the group of Warriors sent by Marley to attack the Walls of Paradis Island in year 845, but his mission was cut short by the sudden appearance of Ymir as a Pure Titan. He possessed the ability to transform into the Jaw Titan.

(Source: Shingeki no Kyojin Wikia)