Jaden Smith as Kaz Kahn (voice)

Susan Sarandon as Aunt Agatha (voice) / Mom Shopper (voice)

Rashida Jones as Female Announcer (voice) / Subway Robot (voice)

Jude Law as Charles (voice) / Sadie (voice) / Maitre D (voice)

Jason Schwartzman as Arcangelo (voice) / Kip Whittaker (voice) / Sebo (voice)

Richard Ayoade as Herbert Sims (voice)

Alexa Chung as Cathy (voice)

Ray Wise as Old Man (voice) / Male Announcer (voice)

Jamie Foxx as Watch Man (voice) / Simon Hammerstein (voice)

Desus Nice as Gottlieb (voice)

The Kid Mero as Lexy (voice)

Angélique Kidjo as Aunt Angelique (voice)

Rowan Blanchard as Bergdorf Chan (voice) / Salesclerk 3 (voice) / Teenage Girl (voice)

Julian Barratt as Great Demon (voice) / Salesclerk 2 (voice)