Robert De Domenici is a British actor, born and raised in London. He is part Italian, with family origins in Naples, and he is also of part Jewish descent. Whilst growing up in London, his friends gave him the nickname ''Robby D''. He has worked in film, theatre, and television, having started his career in a string of low budget independent films and landing roles in Off-West End theatre plays. His chameleonic versatility ranges from dark intense roles to lighthearted comedy playing a wide variety of performances including a medieval shepherd, a psychotic unloved son of a 1950's Soho nightclub owner; an egotistical university professor, a comedic Italian-American wiseguy, and an existentialist writer. 

In 2016, he made his screen debut in The Second Shepherds' Play, a film based on the medieval mystery play written by The Wakefield Master. His other film credits include Come Down (2018), The Shaman (2018), and Liberté (2020), an LGBT film about a young man who decides to become transgender. He made his directorial debut with The Pope of Arthur Avenue (2020), an Italian-American comedy short film set in The Bronx, New York which he also wrote and starred in. His theatre credits include the Royal Shakespeare Company Open Stages production of Macbeth (2015), Dead White Males (2016), Stags and Hens (2016), The Idiot (2017), and Jez Butterworth's Mojo (2018). In 2021, he played musician and songwriter Tony Banks in the television docudrama Breaking The Band: Genesis for ITV. Subsequently in the same year, he performed in the dinner theatre show Festa di Famiglia at Bunga Bunga in Covent Garden as well as playing Dante in the independent art house film Until The End Of Time. In 2022, he performed at Theatre Peckham for the Peckham Fringe in Hayfever. His latest credit is the lead role in Yaga (2022) at the Drayton Arms Theatre in South Kensington. 

He studied method acting under acting coach Tom McClane at the Drama Centre London and at the Questors Academy for two years with director and movement coach Nicholas Jonne Wilson. He also trained at the Stella Adler Studio of Acting under scene study teacher Jon Korkes and The Lee Strasberg Theatre & Film Institute with renowned method acting teacher Lola Cohen. He is represented by International Actors London. He is also a certified Level 3 personal trainer and boxing coach.