Anthony Rapp appears in this episode. In 2017, he was a major player in the Me Too movement, featured heavily on this show, when he accused Kevin Spacey of assault when Rapp was a teenager.
Episode features Anthony Rapp and Wilson Cruz, who appear on Star Trek: Discovery as romantic partners.
Amy Hargreaves (Lainie Jensen) and Jake Weber (Barry Walker) both worked on four episodes of Homeland (2011).
Hannah left a note with 11 reasons "Why Not." When her mother gave the note to Clay she said that it was two reasons short, but failed to make the possible connection that there are 11 letters in Hannah Baker's name.