Ezius was a White Robe Wizard. He was one of the first three Sentinels of Bastion appointed in 340 AC. By 345 AC, when Guerrand DiThon was appointed High Defender, he was the only remaining of the first three sentinels. He continued as a sentinel past 349 AC in the second Bastion.
He wore white robes with gold trim. His hair was long, frizzy, and dull yellow. He wore thick spectacles. He was usually quiet and befuddled. However he was organized, punctual, and paid attention to detail.