Gareth is one of the Orkady trolls, son of King Lot and Queen Morgause and brother of Sir Agravain, Sir Gawaine and his protective older brother Sir Gaheris. Gareth is open-hearted and good-natured and wants to be everyone’s friend. He admires Queen Guinevere Pendragon and supports her cause but it pains him that this loyalty divides him from his older brother Agravaine and his parents. Consequently, he tries to avoid politics.

Sir Gareth is a knight of Cameliard and one of Guinevere’s champions. As Garth Trowson he is an in-demand bouncer and bodyguard, often working for his brother Gaheris’ firm. Many of Gareth’s clients are actors or actresses appearing on the London stage or at premieres at Leicester Square.

Gareth has a pair of matching chimerical swords which he dual-wields, splitting his dice pool between attacks or parries with both of them.