Marvel casting director Sarah Halley Finn reflects on some of the franchise’s defining casting choices, from Robert Downey Jr. as Iron Man and Tom Holland as Spider-Man to Pom Klementieff’s unique take on Mantis. She also talks about casting “Wild Horse Nine,” including recognizing what John Malkovich and Sam Rockwell could bring to the film together, and shares how she spots potential, builds strong ensembles, and approaches self-tapes and auditions.