Her older brother Karl Noembreux was an OZ test pilot that had disappeared while performing tests with the Gundam Lucifer. In order to find him, she came up with the plan to sneak into the colony where the Romefeller Foundation built their mass production Gundams, all under the auspices of a choral performance. During the hijacking of the Gundams, she stole a Wing Gundam Seraphim, whose ZERO System Ver 2.5 would be used to help her to track down her older brother. However, the race to find her brother results in her losing her two best friends before finally encountering him. Unfortunately, her older brother had been driven mad by the ZERO 2.0 System installed within the Gundam Lucifer. When Tiel refused to join him in eradicating "war-like parties", the two battled, with both ending up falling into the Earth's atmosphere.
- Like the primary Gundam Wing cast, Tiel's name can be considered a number pun. Non is the Latin root for nine; an alternate reading of her surname, "Nombreux", is the French word for "numerous".
- Tiel is the first female protagonist of the Gundam franchise.
|After Colony / Mars Century|
|Anime||Gundam Wing | Endless Waltz | Comprehensive Episode Listing|
|Events||Operation Meteor | Operation Nova | Eve Wars | Operation Mythos|
|Topics||Characters | Locations | Mobile Suits | Nations and Factions | Technology | Warships and Spacecraft|
|Books||Gundam Wing Manga | Gundam Wing Novel | Endless Waltz Manga | Endless Waltz Novel | A Scythe In My Right Hand, You In My Left | Battlefield of Pacifists | Blind Target | Episode Zero | Frozen Teardrop | G-Unit (The Last Outpost) | Ground Zero | Perfect Album Bom-Bom Comic | Technical Guide | Glory of the Losers | Tiel's Impulse|
|Media||Gundam Wing: Complete Remastered Edition|
|Timelines||Ad Stella | Advanced Generation | After Colony | After War | Anno Domini | Build Fighters | Correct Century | Cosmic Era | Future Century | Mars Century | Post Disaster | Regild Century | SD Gundam | Universal Century|