Roderick Gilmore

Ser Roland Gilmore is a knight of Highever and a temporary companion in the Human Noble origin. The Human Noble first sees him when looking for Fergus Cousland. He warns the Human Noble that Dog has once again been causing mayhem in the kitchen. After they find the hound, Gilmore assists in fending off a pack of giant rats, who were the real reason behind the ruckus. Afterwards, he goes to his own duties.

Quotes

 * "Here I am, killing rats. How noble!"
 * "Giant rats? It's like the start of every bad adventure tale my grandfather used to tell."

Further facts

 * Ser Gilmore's corpse can be seen in a Fort Draken cutscene during the quest Captured!. Whether this is actually Ser Gilmore or just a random corpse is unknown.
 * His first name is Roland, and he is called "Rory" for short. This is a direct reference to the Gilmore Girls. (However in the Dragon Age Origins Prima Official Game Guide it lists Ser Gilmore's first name as Roderick.)
 * He went to squire to the castle at age 11 or 12.
 * His homeland estate is called Hunter Fell.

These facts were told via PM from David Gaider to the author of the Ser Gilmore NPC mod (source).