On "Talking Dead: Rendition", Hilarie Burton Morgan (Lucille) revealed that her son, Gus Morgan, portrayed the taunted boy walker shown in this episode's sneak preview. Gus is also the son of her husband, Jeffrey Dean Morgan (Negan).
The Whisper in Aaron's nightmare was none other than Greg Nicotero himself.
Production had three fully decorated cakes made for the scene where Tomi accidentally drops his frosted masterpiece. The cake wasn't just a prop, it was edible and delicious. TWD EPs Denise Huth and Greg Nicotero each tried a bite from the part of the fallen dessert that wasn't touching the floor.
Jesse Boyd reprises his role as The Blonde Wolf in Aaron's nightmare. His character was Owen's right-hand man in The Wolf's group in S5 & S6.
The stuffed animal Gracie is holding is one of the toys Aaron brought back from May's warehouse in the episode "One More." According to the script, the toy brand is called "Abnorminals." and each one is a hybrid. Gracie's stuffed animal is a mix between a rabbit and a squirrel.