The fourth episode of The Audacity, featuring Billy Magnussen as tech CEO Duncan Park, has been described as "crazy" by Magnussen. The scene of Fight Club, which Magnussen plays, is based on a real Silicon Valley fight club. Duncan Park is trying to secure a nine-figure investment from valley legend Carl Bardolph (Zach Galifianakis), but this has only resulted in him stabbing Duncan's hand with a fork and having his security intervene. Magnussen also highlighted the character's constant quest for external approval, which he believes allows him to create problems rather than self-destructively. The climax of the episode, "Vanitas," ends with Duncan celebrating in a cold tub.