Silenus

Silenus is a satyr and holds a seat on the Council of Cloven Elders. He is strong-willed and often believes that his cause is more important than anyone elses. In mythology, Silenus was a companion and tutor to Dionysus.

The Lightning Thief
He may have been the one whom commended Grover after coming back from his quest, saying he was "Brave to the point of indigestion. Horns-and-whiskers above anything we have seen in the past".

The Battle of the Labyrinth
Silenus first appears during the trial of Grover Underwood. He and the other satyrs of the council (Leneus and Maron) do not believe that the god Pan has spoken to Grover. Chiron persuades the council to allow Grover one week to find proof of Pan. Later, when Grover returns with news that Pan is dead, Silenus and the council do not believe him. The council vote ends with a tie and the council decides to not believe Grover. Half of the satyrs follow Silenus while the other half decide to follow Grover.

The Last Olympian
Silenus was mentioned by lenus when he was talking to Percy and juniper.When Percy asked lenus where Silenus and Maron had gone he nervously replied that he was sure they would be back,and they were just taking time of to think,although Percy did'nt believe him.It is unknown what happens to him after the battle of manhattan,but the council may have been dissolved after lensuses death.