Mayor Undersee was the mayor of District 12.
A fairly just mayor, Mayor Undersee attempted to improve District 12, a district that had many problems and affairs. He opened each reaping with his usual speech along with the district's escort, Effie Trinket.
The mayor was not very strict about enforcing laws, and didn't have a taste for events such as public punishments. He also regularly bought strawberries from Katniss Everdeen and Gale Hawthorne, even though their gathering of the fruit was technically illegal.
Mayor Undersee was described as being a tall,balding man.