
Cox was born to a British father and an Irish mother in Vienna. Her parents later divorced. Both of them are pianists, who originally came to Vienna on a grant for musicians. Cox grew up in Vienna and graduated from high school in 2003. She developed an interest in acting after performing in a play as part of her English classes during her final year in high school. After her graduation she went on to study acting at the Max Reinhardt Seminar. In 2008 she was under contract as a stage actor at the Theater in der Josefstadt in Vienna. In 2011 Cox moved to Berlin and since then she has appeared in various movies and series on German and Austrian TV, among them several Tatort movies. Since 2015 she plays the role of the viking woman Brida in the TV series The Last Kingdom, which made her known to international audiences.

Kurzstrecke mit Pierre M. Krause

ラスト・キングダム

jerks.

マインドフルに殺して

Wer weiß denn sowas?

HOMELAND/ホームランド

ラスト・キングダム: 死すべき7人の王

Wie man leben soll

Steirerstern

コンステレーション

SOKO Stuttgart

SCHULD nach Ferdinand von Schirach

Nichts zu verlieren

Praia do Futuro

37 Sekunden

Der Medicus II

Die Tänzerin - Lebe deinen Traum

ヘッド・フル・オブ・ハニー

Polizeiruf 110

Die Rettung der uns bekannten Welt

Tatort

Labaule & Erben

SOKO Leipzig

Rammbock

Nur ein Augenblick

Die Freischwimmerin

Kommissarin Lucas

Ein Fall für zwei

Wuff

Womit haben wir das verdient?

Unschuldig - Der Fall Julia B.

CopStories

Die Vaterlosen

Kleine Eheverbrechen

Unsichtbarer Angreifer

Alma und Oskar

Die Lebenden

SOKO Donau

Schnell ermittelt

Danowski - Blutapfel

SOKO Kitzbühel

Zorn

Killerjagd - Schrei wenn du dich traust

Stille

Jesus Cries

Hartwig Seeler – Ein neues Leben

The Vicar's Wife

Der Täter

Eine königliche Affäre

Blind ermittelt: Zerstörte Träume

Paul Kemp - Alles kein Problem