Kelsey Grammer (Hunter), Keegan-Michael Key (Alpha Wolf), and Jordan Peele (Beta Wolf) have also appeared in Pixar's Toy Story franchise on separate occasions Grammer was in Toy Story 2 (1999) as its main antagonist Stinky Pete The Prospector and Key and Peele were in Toy Story 4 (2019) as Ducky and Bunny.
Kelsey Grammer's fourth animated film where he voices a villain after Runaway Brain (1995) with Dr Frankenollie, Toy Story 2 (1999) with Stinky Pete the Prospector, and Teacher's Pet (2004) with Dr Ivan Krank.
The trivia items below may give away important plot points.
When Junior delivers Diamond Destiny to her family, the Gardners, he envisions the infant's future for when she grows older. During the sequence of Junior's envisioning, Diamond Destiny bears a resemblance to two of the major characters, mainly because she bears the same or a similar hairstyle. In the image depicting Diamond Destiny as a skating performer, she bears a striking resemblance to Tulip having a bun similar to Tulip's. This could signify her relation with Tulip. In the image that depicts Diamond Destiny practicing martial arts, she has the same hairstyle as her mother; Sarah does martial arts earlier in the film when she works as a real estate agent.