Ra's al Ghul (Arabic: رأس الغول Raʾs al-Ghūl but originally pronounced by the creators with Re'sh, hence /ˈreɪʃ
Most notable as the leader of the League of Assassins, Ra's al Ghul's name in Arabic translates to "Head of the Ghoul". He is the son of Sensei, the father of Talia al Ghul, Nyssa Raatko, and Dusan al Ghul, and the maternal grandfather of Damian Wayne. Stories featuring Ra's al Ghul often involve the Lazarus Pits, which restore life to the dying. The Lazarus Pits have considerably prolonged Ra's life, making him particularly dangerous as he has honed his combat skills for centuries.
Ra's al Ghul has been featured in various media adaptations. The character was portrayed by David Warner in Batman: The Animated Series, Liam Neeson in The Dark Knight Trilogy, Jason Isaacs in Batman: Under the Red Hood, Dee Bradley Baker in the Batman: Arkham video game series, Oded Fehr in Young Justice, Matt Nable in the Arrowverse television series, and Alexander Siddig in Gotham.