Saunders Triplets

From Harry Potter Wiki

The Saunders Triplets are three brothers who played the baby version of Harry Potter in the film adaption of Harry Potter and the Philosopher's Stone. They portrayed baby Harry during an early scene when he is being brought to his aunt and uncle's house. Their first names are unknown as they are credited as "Saunders triplets" and not individually by their given names. As minor child parts are often played by more than one person, this is likely the reason why these three identical triplets, who are nearly impossible to differentiate, all are credited as playing the role.