Jack Gillett made his debut as Lex in SYFY's 'Deadly Class', produced by the Russo brothers. This performance got him nominated for 'Best Emerging Performer' at the UBCP awards (2019).

Gillett has also starred in episodes of 'DC Legends of Tomorrow', 'Charmed' and 'Chesapeake Shores'. As well as being an on-camera actor, Gillett has also found success in voice acting, playing multiple characters in 'My Brother the Monster'.

Gillett trained at The London Academy of Music and Dramatic Arts (LAMDA) for 4 years. Through the intensive training, Gillett was qualified in many armed and unarmed combat disciplines. As well as combat, Gillett has extensive experience in dance and singing, performing in musicals such as 'Spring Awakening' as Ernst Robel and 'Merrily We Roll Along’.

Jack grew up on the UK's Norfolk coast, which allowed him to independently explore and form a love for everything outdoors. While at boarding school, he discovered a passion for classic cars and helped restore them. He also took part in Combined Cadet Force (CCF), where he was awarded gliding and flying scholarships and flew solo in both respective aircraft.