Marfet is an adventurer on the 1st floor[?] of the Varrock Museum. He wears full Splitbark armour.
His dialogue changes depending on specific quests the player has completed, and how many Kudos have been earned, though it always stays quite similar to Torrcs's dialogue.
After the completion of The Dig Site quest, either Marfet or Torrcs tells the player how to obtain another Teddy.