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Tieria Erde 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 operates CB-002 Raphael Gundam in Mobile Suit Gundam 00 The Movie: A wakening of the Trailblazer.

Skills and abilities

As an Innovade, Tieria was created to adapt to the conditions of space and use of quantum brainwaves (QBWs). With his quantum brainwaves, Tieria is able to fully connect to the entire network of Veda, allowing him access to all information Veda has, up to Level 7. Specifically designed as a Combat-type Innovade, Tieria has high potency in MS combat and coordinated military tactics for effectiveness in the battlefield. It was noted that he could control Nadleeh just by thoughts alone.He also has training in firearms and minor in MS technical training to maintain his Gundams. 
Entrusted with the power of Trial System, Tieria had the ability to disable any unit that was connected to Veda. Due to Ribbons Almark's tampering with Veda (AD 2307, season 1), Tieria was locked away to access Veda and couldn't interface his Gundam to activate Trial System.

During the 4-year gap (AD 2312, Season 2), Tieria further enhanced his training in aspects of MS engineering, MS combat, and general battleship operational skills; making him a more versatile Gundam Meister. Tieria's brainwaves could be enhanced through exposure to high-grade and concentrated GN particles, stimulating his quantum abilities. After Tieria's consciousness was transferred to Veda, Tieria had full control of the resources Innovators had access to, including access to Trial System for Seraphim Gundam.

s Veda, he has the ability to expand his mind and will throughout the limits of computer networks. He can interface with all of CB technology and contains all the secrets of CB and Innovators. He also has remote access to manufacturing MS facilities to create mobile suits at his discretion and facilities to clone himself a new body. This allows Tieria to return to his physical form whenever he wants. Should his physical body be killed, his consciousness is transferred back to Veda. As a living consciousness within Veda, he can also transfer himself to any Veda-terminal and access data and systems, including GNT-0000 00 Qan[T]. Because Tieria has no age limit and can exist as living data, he is essentially immortal so long as his consciousness survives.


  • Tieria was the only one of the 4 Gundam Meisters of the series who managed to return to Celestial Being at the end of Season 1. Setsuna F. Seiei was doing solo work during the 5-year interval between Seasons 1 and 2, Allelujah got captured by the Earth federation army and Lockon Stratos (Neil Dylandy) died on the first season. Although on the second season, Tieria was the only one who died by being shot on the head by Ribbons Almark. Despite being killed, his conscience linked with Veda so he is still considered alive.
  • During the second trailer of the Gundam 00 movie, Tieria was seen wearing a blue suit like Setsuna's as opposed to the series as he was wearing a purple suit.
  • As stated during the first season of Gundam 00, he prefers being in space than on Earth.
  • Tieria's English voice actor, Samuel Vincent, also voiced as Hong Long in Gundam 00 and also as Athrun Zala in Gundam Seed and Gundam Seed Destiny.    

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