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Actor · Director

1989-06-19 · Rome, Italy · Male

11 series in the catalog

Giacomo Keaton Gianniotti (born 19 June 1989) is an Italian–Canadian film and television actor. He studied theater at Humber College and made his acting debut in the Italian television series Medicina generale in 2010.

He went on to play recurring roles in the television series Reign (2013) and Murdoch Mysteries (2013–2014). From 2015 to 2021, Gianniotti portrayed Dr. Andrew DeLuca in the medical drama series Grey's Anatomy. He also played the title character in the films Diabolik: Ginko Attacks! (2022) and Diabolik: Who Are You? (2023).

Early life

Giacomo Gianniotti was born 19 June 1989, in Rome, Italy. His father is Italian and his mother is Canadian. In 1994, after his parents' marriage ended, his mother returned to Canada and he grew up in his mother's hometown of Parry Sound, Ontario. At age 16 he moved to Toronto into York Mills. He divides his time between Toronto and Rome, working in Canadian and Italian stage, films and television.

He attended high school at Cardinal Carter Academy for the Arts in Toronto, then graduated from Humber College's Theatre Program. He has also completed an actor's residency at Norman Jewison's Canadian Film Centre in Toronto.

Career

His first acting experience in film was a small role in a Giulio Base's feature film featuring Shelley Winters and Vittorio Gassman, shot in the "Cinecittà" film studio in Rome. He guest starred in an episode of the Italian television series Medicina generale in 2010. He appeared in several television shows in 2013, including Beauty & the Beast and Copper, in which he starred in three episodes.

Gianniotti played a recurring role as Lord Julien in the first season of Reign. He played Leslie Garland for several episodes in Murdoch Mysteries (2013–2014, 2023). He starred as Freddy in the television series Selfie (2014), and later acted in the made-for-TV drama film The Secret Life of Marilyn Monroe.

In 2015, Gianniotti appeared in Backpackers as Andrew. Also in 2015, he was cast as surgical intern Dr. Andrew DeLuca for the last two episodes of the eleventh season of Grey's Anatomy. On 8 January 2016, he was promoted to series regular.

In 2019, Gianniotti was one of the recipients of the Top 25 Canadian Immigrant Awards presented by Canadian Immigrant magazine.

In 2021, Gianniotti won the Tell-Tale TV Award for Favorite Actor in a Network Drama Series for his role on Grey's Anatomy.

In 2024, Gianniotti starred as Elia in the Netflix Italian series Deceitful Love.

Since 2024, he has starred as Detective Cole Ellis in the series Wild Cards.

Personal life

On 25 November 2017, Gianniotti became engaged to makeup artist Nichole Gustafson. They married on 28 April 2019 in Italy. On 24 February 2025, Gianniotti announced that he became an American citizen.