"The Cool Kids" is a group that resides in Beach City, consisting of Buck Dewey, Jenny, and Sour Cream. These members reside usually in a pack, but each have their own individual appearances throughout the series. They made their official debut in "Lars and the Cool Kids" (but have made an appearance in the theme song) and have made several other appearances.
- "Frybo" (debut as cameo)
- "Arcade Mania" (Sour Cream only, cameo)
- "Joking Victim"
- "Beach Party" (Jenny only)
- "On the Run" (cameo)
- "Alone Together" (Sour Cream only)
- "The Return" (cameo)
- "Shirt Club" (Buck Dewey only)
- "Onion Friend" (cameo)
- "Historical Friction" (Buck only)
- "Sadie's Song"
- "Lars and the Cool Kids" (official debut)
- "Joy Ride"
- Each of the Cool Kids resembles each of the Crystal Gems.
- The Cool Kids' personalities, match certain aspects of each of the Crystal Gems'.
- Jenny is fun, care-free and counter-dependent, like Amethyst.
- Buck is stern, level-headed and independent, much like Garnet.
- Sour Cream cares about rules such as seat belt safety, similar to how Pearl cares about road safety to the point of not playing a racing game correctly.
- Out of all the cool kids, Sour Cream appears to share the least in common with their corresponding Crystal Gem.
- Sour Cream has the most appearances of all the Cool Kids.