Alan Michael Ritchson (born November 28, 1982) is an American actor. He made his acting debut as Aquaman / Arthur Curry on The CW superhero series Smallville (2005–10), where he appeared as a guest star between the fifth and 10th seasons. He subsequently had a starring role in the Spike TV sitcom Blue Mountain State (2010–2012), a role he reprised in the 2016 film sequel. He also headlined the SyFy action series Blood Drive (2017), and returned to superhero television as Hank Hall / Hawk on the DC Universe / HBO Max series Titans from 2018 to 2021. He gained wider recognition for portraying the title character in the ongoing Amazon Prime Video action thriller series Reacher since 2022.