Giacomo Gianniotti is an Italian-Canadian actor. Gianniotti began his television career in 2010, landing roles on TV both in Italy and Canada, appearing in series and made-for-TV films such as Reign, Murdoch Mysteries, and The Secret Life of Marilyn Monroe. He later joined the cast of Grey's Anatomy as Dr. Andrew DeLuca and starred in the films Acquainted, Diabolik: Ginko Attacks!, and The Cuban.