The Episode: Casino Royale, based on Ian Fleming's first James Bond novel: Shares a similar plot where a dapper card shark goes up against a card shark villain, in the villain's outwardly plush but inwardly dangerous territory.
Dominion is a lot like Spectre, and the scene where Harry Dominion holds a circular meeting with his agents, telling them one is a traitor, is very much like the Blofeld Briefing scene.