Late night

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Jessica Chastain and Stephen Sondheim are booked on “The Late Show With Stephen Colbert” (11:35 p.m., CBS). ›

Jimmy Fallon welcomes Ben Platt and JoJo Siwa on “The Tonight Show” (11:35 p.m., NBC). ›

B.J. Novak, Nessa Barrett and Jose Medeles visit “Late Night with Seth Meyers” (12:35 a.m., NBC).