In the Gotham episode “A Dark Knight: They Who Hide Behind Masks,” while Gordon (Ben McKenzie) travels to Miami to convince Carmine Falcone (John Doman) to help him take down Penguin (Robin Lord Taylor), Barbara Kean (Erin Richards) approaches Penguin about a knife about to be sold at his auction. Penguin says he’ll sell it to her before the auction if she reveals the identity of her client, who Penguin refers to as her “mysterious benefactor.” Barbara’s client is Ra’s al Ghul (Arabic for “Head of the Demon”).
Ra’s al Ghul is portrayed by Alexander Siddig. The British-born actor is known for his roles on Peaky Blinders (Ruben Oliver), Game of Thrones (Doran Martell), 24 (Hamri Al-Assad), and Star Trek: Deep Space Nine (Doctor Bashir), among others. Siddig is also recognized for his roles in the films Syriana (Prince Nasir Al-Subaai), Clash of the Titans (Hermes), and Kingdom of Heaven (Imad). Gotham airs Thursdays at 8pm on FOX.