According to KENS Channel 5, San Antonio police were called to the Grand Hyatt hotel for "an assault in progress." Booking records indicate Bennett was taken into custody following a physical altercation, and charged with assault causing bodily injury. No further details about the incident have been released.
The actor was held on $1,600, and released about 1 p.m. Sunday. The planned "Villains of 'Arrow'" panel at Alamo City was canceled.
Bennett is best known in comics circles for playing Slade Wilson/Deathstroke, Oliver Queen's mentor turned adversary, on the first three seasons of "Arrow." His credits also include "The Hobbit" (the Orc chieftain Azog), "Spartacus" (Crixus) and the upcoming "Shannara Chronicles" (Allanon).