The Weird Cat, also known as the Strange Cat, is Duncan's pet. Noted for its unsightly appearance, not much is known about its past. Duncan claims that it "randomly" appeared inside his house, and decided to let it stay anyway. While the Weird Cat is an animal, talking to it while playing as a pet character will do nothing.
The Weird Cat is actually the mascot of DevCAT Studio (the developer of Mabinogi: Fantasy Life).
- The Weird Cat is mentioned in one of the loading screen tips: "A strange cat lives in the Chief's house of Tir Chonaill..."
- Prior to Generation 16, Season 2 Update, players could talk to the Weird Cat in order to skip Generation 1 to move onto Generation 2, or Generation 3 to move onto the Dark Knight Quests.