“It Really Was a Blast” - Dónal Finn Talks Mischief, Moriarty & Representing Ireland

At the Young Sherlock World Premiere, Dónal Finn speaks to Colin Hart about stepping into the role of Moriarty in this bold new origin story. Calling the experience “a blast,” Finn praises the balance of action, humour and intrigue brought together by Guy Ritchie and showrunner Matthew Parkhill. Reflecting on his chemistry read with Hero Fiennes Tiffin, Finn reveals he decided to “go in and be as bold as possible” — and immediately felt the dynamic was “electric.” He also speaks proudly about representing Ireland on such a large stage, embracing the “devilment” and conviction of his character, and admits he would “absolutely be there” if the opportunity for another series came along. “I was dancing going to work,” he smiles — high praise indeed. Young Sherlock streams exclusively on Prime Video from 4 March 2026. Interviews for Prime Video's Young Sherlock series starring Hero Fiennes Tiffin, Dónal Finn, Zine Tseng, Joseph Fiennes, Natascha McElhone, Max Irons, Colin Firth & directed by Guy Ritchie. Colin Hart and Madison Hart were on the red carpet. Plot: In Young Sherlock, a charismatic and defiantly youthful Holmes crosses paths with the enigmatic James Moriarty, pulling him into a murder investigation that threatens not only his freedom but the very shape of his future. What begins as a single case spirals into a globe-trotting conspiracy, culminating in an explosive confrontation destined to alter the course of his life. Set against a richly textured Victorian England and stretching into adventures abroad, the story reveals the anarchic early days of a boy not yet tempered into Baker Street’s master of deduction. The series will be released on 4 March 2026 exclusively on Prime Video. #YoungSherlock #DonalFinn #Moriarty #HeroFiennesTiffin #GuyRitchie #ColinHart #WorldPremiere #PrimeVideo #RedCarpet #HeyUGuys --------------------- For syndication or usage opportunities please contact [email protected]. --------------------- More from HeyUGuys: Website ► http://HeyUGuys.com Follow us on Twitter ► http://twitter.com/HeyUGuys Subscribe here! ► http://bit.ly/HeyUGuysYTSub Facebook ► http://facebook.com/HeyUGuys Instagram ► http://instagram.com/HeyUGuysOfficial TikTok ► https://www.tiktok.com/@heyuguysofficial ---------------------