Acting Malarkey had his beginnings on the London stage appearing in various theatre productions including lead roles in
Spring Storm by
Tennessee Williams and
Beyond the Horizon by
Eugene O'Neill at
Royal National Theatre, an adaptation of
The Great Gatsby in the role of
Jay Gatsby and in the Original London Company of
Million Dollar Quartet in the role of singer
Elvis Presley. Malarkey also appeared in several film and television projects including recurring roles in series'
Raw for
RTÉ,
Mr. Sloane with
Nick Frost and in the leading role for
The CW pilot
The Selection before landing the role of
Lorenzo "Enzo" St. John in season 5 of the television series
The Vampire Diaries as a recurring character. In 2019, Malarkey played the role of "Cinch Barton" in the thriller film
A Violent Separation. That same year he starred as Captain Michael Quinn in
Project Blue Book for
The History Channel. In September 2021, it was reported that Malarkey had a recurring role as Deputy Harvey on the second season of
ABC's crime drama TV series
Big Sky. He then appeared in
Westworld and
Quantum Leap in 2022 and in the
third season of
Law & Order: Organized Crime in 2023. In February 2024, it was announced that Malarkey had joined the main cast for the second season of
Netflix's conspiracy thriller series
The Night Agent.
Music After finishing high school, Malarkey joined a local hardcore band called Shadyside. He became the frontman when the lead singer left the band. Malarkey spent five years with the group touring and recording in
Nashville while simultaneously learning guitar. As a solo artist, after two EPs in 2014 and 2015, he released his debut full-length record,
Mongrels on 8 September 2017 accompanied by music videos for singles "Uncomfortably Numb" and "Mongrels". The next year, he released another EP,
Captain Solitaire. In January 2020, Malarkey released his second album,
Graveracer. ==Personal life==