Dominic Bernard Patrick Luke Monaghan is a British-Irish actor. He is best known for playing Meriadoc "Merry" Brandybuck in Peter Jackson's film trilogy The Lord of the Rings (2001–2003), and Charlie Pace on the ABC television drama Lost (2004–2010).

Meriadoc Brandybuck, usually called Merry, is a Hobbit, a fictional character from J. R. R. Tolkien's Middle-earth legendarium, featured throughout his most famous work, The Lord of the Rings. Merry is described as one of the closest friends of Frodo Baggins, the main protagonist. Merry and his friend and cousin, Pippin, are members of the Fellowship of the Ring. They become separated from the rest of the group and spend much of The Two Towers making their own decisions. By the time of The Return of the King, Merry has enlisted in the army of Rohan as an esquire to King Théoden, in whose service he fights during the War of the Ring. After the war, he returns home, where he and Pippin lead the Scouring of the Shire, ridding it of Saruman's influence.