Gianniotti in 2016
Giacomo Keaton Gianniotti
June 19, 1989
|Alma mater||Humber College|
Giacomo Keaton Gianniotti (born June 19, 1989) is an Italian-Canadian actor. He studied theatre 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). In 2015, Gianniotti began playing a surgical resident, Dr. Andrew DeLuca, in the medical drama series Grey's Anatomy.
Giacomo Gianniotti was born June 19, 1989, in Rome, Italy. He emigrated with his family at a young age and grew up in Toronto, Ontario, Canada. Gianniotti splits his time in the year between Toronto and Rome, working in stage, films and television, both Canadian and Italian.
He attended high school at Cardinal Carter Academy for the Arts in Toronto and 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.
His first experience in film was a small role in a Giulio Base's feature film featuring Shelley Winters and Vittorio Gassman, shot in the "Cinecittá" 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). He starred as Freddy in the now cancelled 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.
On November 25, 2017, Giannotti became engaged to makeup artist Nichole Gustafson. They married on April 28, 2019 in Italy. 
|2015||The Secret Life of Marilyn Monroe||Jimmy Dougherty||Television movie|
|2010||Medicina generale||Alberto Talenti||Episode: "Separazioni"|
|2013||Beauty & the Beast||Mayor's Aide||Episode: "Anniversary"|
|2013||Copper||Donovan's Clerk||3 episodes|
|2013||Time Tremors||Mr. Vincent||Episode: Facing the Fear|
|2013||Reign||Lord Julien||Recurring role (5 episodes)|
|2013–2014||Murdoch Mysteries||Leslie Garland||Recurring role (9 episodes)|
|2015–present||Grey's Anatomy||Dr. Andrew DeLuca||Guest (Season 11)|
Main Cast (Season 12–present)
Nominated - Golden Maple Award for Best actor in a TV series broadcast in the U.S (2016)
Nominated - Golden Maple Award for Newcomer of the year in a TV series broadcast in the U.S. (2016)
|2018||Station 19||Episodes: "No Recovery" and "Under the Surface"|
- "Giacomo Gianniotti". IMDb. Retrieved September 17, 2015.
- "Giacomo Gianniotti". Twitter. Retrieved September 17, 2015.
- Ausiello, Michael (April 15, 2015). "Grey's Anatomy Recruits Reign Hottie Giacomo Gianniotti for Top-Secret Role". TVLine. Retrieved September 17, 2015.
- Gianniotti, Giacomo (August 6, 2015). "Another day at work with these lovely people #regram @camillaluddington @jpadler @greysabc #greysanatomy #season12". Instagram. Retrieved September 17, 2015.
- Petit, Stephanie (November 26, 2017). "Lovesick! Grey's Anatomy Actor Giacomo Gianniotti Is Engaged". People. Retrieved November 26, 2017.
- "Golden Maple Awards Nominees Unveiled". The Hollywood Reporter. Retrieved 10 November 2016.