An exceptionally feminine fur seal named Muirne ("Festive").
Not much of a fighter, he excels more at talking his way through situations and, when talking fails, running and leading pursuers into traps. He was trained to act as a non-combatant guard for selkie nobility and learned from a young age the uses of the crowbar, the lock-pick and the hammer. As well as how to follow people...
He's quite pleasant and cheerful and tends to mother his friends. He's married to Goibnui.
Muirgen lived with him a while when they were children, and they became close friends as a result of this.

The crowbar was made for him by Goibnui.