Alan Michael Ritchson is an American actor, director, model, and singer. He made his acting debut as Aquaman / Arthur Curry on The CW superhero series Smallville (2005-2010), where he appeared as a guest star between the fifth and 10th seasons. Ritchson gained further prominence for portraying Thad Castle on the Spike TV sitcom Blue Mountain State (2010-2011), a role he reprised in the 2016 film sequel. He also headlined the SyFy action series Blood Drive (2017). In 2018, he returned to superhero television as Hank Hall / Hawk on the HBO Max series Titans, and was cast in 2020 as the title character in the upcoming Jack Reacher Amazon Prime series.
Outside of television, Ritchson played Raphael in the 2014 Teenage Mutant Ninja Turtles reboot and its 2016 sequel, along with appearing in The Hunger Games: Catching Fire (2013). He made his directorial debut with the action-comedy Dark Web: Cicada 3301 (2021), which he also co-starred in.