Tieria Erde (ティエリア・アーデ Tieria Āde?) is a Gundam Meister and one of the protagonists of Mobile Suit Gundam 00. Tieria is also an Innovade, acting as Veda's overseer to the Ptolemy Crew of Celestial Being, especially in Season 1. As Celestial Being's Gundam Meister, Tieria is assigned to pilot the GN-005 Gundam Virtue and the GN-004 Gundam Nadleeh during Season 1; he later pilots the GN-008 Seravee Gundam and the GN-009 Seraphim Gundam in Season 2. After the events in Season 2, Tieria becomes part of Veda as its living consciousness and holographic interface within Celestial Being. He pilots the CB-002 Raphael Gundam in Mobile Suit Gundam 00 The Movie: A wakening of the Trailblazer.