Isaac Timberwolf

Isaac Rami Timberwolf was a recurring character in Class Clown. He was the first cousin of Harleen Timberwolf and the son of Rabbi Saul Timberwolf, a rabbi and is deeply cares about his health and Christianity. In Season 2, he died (due to  Heath Ledger's in 2008).

Death
After the death of Heath Ledger, Isaac would be retired in due to the death of Ledger on January 22, 2008. The process began in "I Cured My True Blue" when Harleen wrote "I'LL MISS YOU, ISAAC!" on the wall with a sad face. In "Funeral Expert Interview", Harleen and Titan both said that they miss him. His passing was indicated by Harleen wearing a black armband. Soon, it was revealed that he died from AIDS.