Sule Thelwell

About

Jamaican actor, writer, and multidisciplinary artist known for his roles as Marius in the Netflix series XO, Kitty and Desmond in the Hulu/Disney+ drama Saint X.

Before fame

He attended Glenmuir High School in Clarendon before he attended deCarteret College in Manchester. He graduated with an Outstanding Achievement Award when he was 17 years old at Glenmuir High School. He originally planned to study architecture. His career path changed after attending a drama camp in May Pen during his teenage years where he was encouraged to pursue acting professionally. He was accepted into the Royal Central School of Speech and Drama at the University of London in 2020 and earned a full-tuition scholarship. His big break came in 2023 when he was cast as Desmond in Saint X in his first major international television role. He gained further recognition in 2026 for his role as Marius in XO, Kitty.

Trivia

He is a trained draftsman and continues engaging and having interest in visual arts including sketching and painting. His appeared in the music video Bob Marley: No Woman, No Cry in 2020. He was featured in Teen Vogue in 2026.

Family life

He was born and raised in Spanish Town, Jamaica. He booked his role in XO, Kitty on his younger sister's birthday on April 10th.

Associated with

He appeared alongside Anna Cathcart in XO, Kitty, where she plays the lead role.