The rising actor was born into the family of Prince Geoffrey Galitzine and Lora. He grew up alongside his sister Lexi Galitzine. His father is a descendant of the House of Golitsyn, a family from the Russian line of nobility.
Nicholas began acting in 2014 after he was cast to play the role of Tom in the film The Beauty Beneath My Feet. He has since appeared in other movies and shows, including The Watcher in the Woods (2017), High Strung (2016) and Chambers (2019). He currently resides in Hammersmith, London, England.