Regarded as one of the best performers of his generation in Israel, he is recognized for his versatile work across independent films, television and the stage.

A graduate of Nissan Nativ Action Studio, he had a breakout role on the hit teen TV drama, HaShminiya (2005–2007).

Aloni portrayed the protagonist, Akiva Shtisel, a Haredi man in Mea Shearim in Jerusalem.

During his military service in the Israel Defense Forces, he served as a Gadna commander in the Marva training program of the Education Corps.

He portrayed Roy, an Israeli Jewish lawyer in Tel Aviv who begins a relationship with a Palestinian man from the West Bank.

[14] In 2014, Aloni starred in Edna Mazia's comic satire, The New Criminals at Cameri Theatre in Tel Aviv.

[15] In 2018, Aloni starred in Martin Sherman's play, Bent at Habima Theatre in Tel Aviv.

[16][17] In 2024, Aloni took on the role of Zaza (previously occupied by Lior Ashkenazi) in a stage adaptation of Dover Kosashvili 2021 film, Late Marriage at Habima Theatre.

[18] In 2024, from September to October, Aloni starred in David Edgar's play Here in America at the Orange Tree Theatre in London.

[22][23] In 2017, he also directed a short film, Shir (Song), about a teenage girl that skips school on Israel's memorial day, Yom HaZikaron.