Sean began his stage and screen career at the tender age of 4 when he appeared as a care bear live on RTE. He attended the Royal College of Music, Royale School of Dance, Trinity College Dublin (B. Mus). and is currently completing his Masters in Musical Theatre at the prestigious Guildford School of Acting. 
Sean is the proud director and owner of SGPA (Sean Gilligan Performing Arts) whose students are renowned for their training and performances. His theatre directing and choreographing credits include Jesus Christ Superstar, Fame, Phantom of the Opera, Copacabana, Footloose, Grease, Aladdin, Les Miserables, West Side Story, Peter Pan, Annie, Wizard of Oz, We Will Rock You, Hairspray, High School Musical, Little Mermaid, Evita, Anastasia, Back to the 80s, Hairspray Jr, Legally Blonde, Cats and Oliver. 
Concert credits: Snowman (Bord Gais Energy Theatre, U.C.L., 3Arena, National Concert Hall), Hilton Annual Cabaret Spectacle (S.G.P.), Childline Concert, ‘A Night with Westlife’ O2, Gary Barlow Belfast, Jacinta Whyte, World Street Performing Championships, Celtic Woman, Carnegie Hall. Sean is the director of The Halleluia Gospel Choir – having worked with Westlife, Gary Barlow, Josh Groban and many others. His theatre awards include Best Director, Best Visual, runner up in Best Overall Show and most recently the adjudicator's special award for his contribution to Youth Musical Theatre (AIMS).