Il a lancé sa carrière d'acteur en 2006, à l'âge de 18 ans, en jouant dans le film ATL.

After nearly six years of marriage, the two divorced in 1977.

After briefly dating Gene Simmons in the early '80s, Diana met Norwegian businessman Arne Næss Jr. They married the following year and she became a stepmother to his three children, Katinka, Christoffer, and Leona.

Il a ensuite joué dans un épisode de l'émission de télévision Girlfriends, et il a joué avec Hilary Duff dans le téléfilm dramatique Greta.

En 2010, il a rejoint le casting de la série dramatique 90210, où il a joué le demi-frère de Liam Court (interprété par Matt Lanter) et le petit ami d'Annie Wilson (interprétée par Shenae Grimes), dans la troisième saison.

En 2012, il est apparu dans le thriller 96 Minutes, aux côtés de Brittany Snow.

En novembre 2014, il a joué le rôle de Messalla dans le film Hunger Games : La Révolte, partie 1.

En novembre 2015, il reprendra son rôle dans la suite Hunger Games : La Révolte, partie 2.

En 2007, Evan a commencé à travailler sur son premier album.

He also has three older paternal half-siblings from his father's first marriage, Christoffer, Katinka, and Leona, Ross began his career as an actor while a student at Greenwich High School. Ross received rave reviews for his role as troubled teenager Amare Mc Carter in the HBO television film Life Support, starring alongside Queen Latifah and his real-life half-sister Tracee Ellis Ross, who portrayed his elder sister in the film.

His first major role was in the film, ATL, released in March 2006, in which he co-starred with rappers T. Ross later co-starred in the biographical film Pride, in which he portrayed a good-natured teen with a speech impediment.

As a musician, Ross released his first single "Yes Me" in February 2011, and his second single "How To Live Alone" in May 2015.