LaMonica Garrett (born May 23, 1975) is an American actor and former professional Slamball player. He is best known for Deputy Sheriff Cane in Sons of Anarchy (2011–2014), Mike Ritter in Designated Survivor (2016–2018), John in Primal (2019), Mar Novu / Monitor and Anti-Monitor in the Arrowverse (2018–2020), and Thomas in 1883 (2021–2022).