Overview

• Set photos and video captured Dominic McLaughlin’s Harry walking with Hagrid on Borough High Street near London Bridge during a Leaky Cauldron/Diagon Alley sequence, briefly halting traffic.
• Hagrid’s scale is being achieved with a body double wearing a lifelike animatronic prosthetic head and facial tracking markers, echoing techniques used in the original films to reach the character’s towering height.
• McLaughlin, 11, said donning the costume felt “a bit surreal” and called the part a dream role in new BBC comments while promoting his film Grow.
• Production began in July at Warner Bros. Studios Leavesden with on-location shoots in London, and HBO plans a 2027 debut with a season-per-book adaptation.
• Francesca Gardiner serves as writer and executive producer with Mark Mylod directing, as Nick Frost leads the adult cast as Hagrid alongside John Lithgow, Janet McTeer, and Paapa Essiedu.