Andrew is a tall, fair-haired man who, like his fellow Branch Heads, wears the long, white coat bearing the silver crosses and the Rose Cross badge that signifies his status within the Order.
Andrew seems to be an aloof person, despite his position. When faced with Inspector Malcolm C. Lvellie's anger, he merely remarks that the man is as "intense as ever," and when Bak Chang and Renny Epstain get into an argument in the cafeteria about Allen Walker, he nonchalantly points out that Allen helped the "traitor," Suman Dark, all while inspecting a piece of food on his fork with disinterest.
- Education: 5
- Affinity: 3
- Work Ability: 3
- Mental: 3
- Flexibility: 3
- Methodic: 5
PlotAndrew is first introduced during Lvellie's meeting with the other Black Order Branch Heads and the Generals after two of the latter have returned from their mission in Japan. When Lvellie indirectly threatens General Cross Marian, Andrew is one of those cowering in fear of the Inspector, remarking that he is "as intense as ever" to Bak.
When the Lvellie proposes using the Ark and Bak protests, saying that they should study it more, Andrew points out that Bak has already been using it, resulting in Bak shoving his hand into Andrew's face and calling him a "runt", and when Lvellie questions Cross about his knowledge of the Fourteenth, Andrew is one of many who is confused.
Later, when Andrew is eating with Bak and Renny in the cafeteria, Allen comes up in a conversation, with Bak wondering why everyone is so tense and Andrew answering that everyone is talking about Allen. When Renny points out that the personnel have noted that Allen's Sword of Exorcism looks like the The Earl's sword and that Allen's arm may not be real Innocence, Bak becomes furious. As they fight, Renny tries to calm Bak down by pointing out that the rumors will probably die down, but Andrew points out that Allen had helped Suman, who is being viewed as a traitor after killing so many people. Andrew then grimly states that if a rift forms in the Order while they're on the brink of war, things could become disastrous.
Andrew then joins Renny and Bak as they make their way to Laboratory Five, where the Akuma Egg is being contained. Johnny Gill intercepts them, asking them to leave, and as he does Andrew impales Johnny with a speared whip just before he slowly morphs into another form; the female Noah Lulu Bell, who has apparently used Andrew's body to invade the European Branch.At about the same time, Cross' bodyguards return from retrieving several items for the General (including some very expensive wine). When their gondola runs into something underwater, one of the guards reaches in and fishes the obstruction out, said obstruction turning out to be the corpse of Andrew Nansen.
- Andrew's interests include equestrianism, he likes roses and dislikes unattractive things.
|The Black Order|
|Exorcists:||Allen Walker • Yu Kanda • Lenalee Lee • Lavi • Bookman • Miranda Lotto • Arystar Krory III • Noise Marie • Chaozii Han • Timothy Hearst • Suman Dark • Daisya Barry •Chalker Laboun •Kazaana Reed • Hevlaska • Maria • Cross Marian • Froi Tiedoll • Klaud Nine • Winters Socalo • Kevin Yeegar|
|Third Exorcists:||Kiredori • Goushi • Madarao • Tokusa • Tewaku|
|Executives:||Komui Lee • Bak Chang • Renny Epstain • Andrew Nansen • Louis Fermi • Malcolm C. Lvellie • Sammo Han Won • Bridget Faye • Bak Chang •|
|Personnel:||Reever Wenhamm • Johnny Gill • Tup Dop • Number 65 • Rob Neal • Marvin Huskin • Jeryy • The Gatekeeper • For • Rohfa • Rikei • Shifu • Legory Peck • Mark Burroughs • Howard Link • Head Nurse • Cash Dop • Gigi Lujun • Finders|
|Branches:||European Branch • Asian Branch • North American Branch|
|Other:||Innocence • Apocryphos • Noah's Ark • CROW • Second Exorcist Program • Third Exorcist Program • Fallen One • Komlin • Golem • Inventions and Technology|