In minor roles, Karen Gillan appears as Evie, an employee of the SEC and Jamie's brother's ex-girlfriend, whom he meets with in Las Vegas. Max Greenfield and Billy Magnussen appear as mortgage brokers taking advantage of people looking for homes. Jae Suh Park features as Burry's wife, and Margot Robbie, Anthony Bourdain, Richard Thaler and Selena Gomez make cameo appearances as themselves in non-sequiturs to explain different financial aspects of the film. The real Michael Burry made a cameo in the film as a Scion employee. At the beginning of the scene in which the fictional Burry's investors confront him at his office, he is briefly shown standing near the front door, talking on the phone.
