Cástulo Guerra (born August 24, 1945, in Córdoba, Argentina) is an Argentine actor who has built a career in American film and television since the 1970s. He abandoned medical studies at the Universidad Nacional de Tucumán to pursue drama, eventually moving to New York in 1972 where he co-founded the experimental Free Theater Lab. He is best known on screen for Terminator 2: Judgment Day (1991), The Usual Suspects (1995) and The Mexican (2001), while also maintaining an active stage and voice-acting career.
Cástulo Guerra played the role of Professor Zeisse in the theatrical premiere of the play Ghost Waltz at Latino Theatre Company in Los Angeles (April-June 2024).
