Marvel's Midnight Suns: The Good, The Bad, and The Undead is the first DLC expansion for Marvel's Midnight Suns, released in January 2023. This expansion introduces Deadpool as a fully playable hero, bringing his trademark humour, unpredictability, and unique combat abilities to the game.

The DLC adds new story missions focused on Deadpool's involvement in the battle against Lilith and her demonic forces. These missions are designed to showcase Deadpool's quirky personality and chaotic fighting style, which includes regenerative healing and a mix of melee and ranged attacks.