"The Cool Kids" is a group that resides in Beach City, consisting of Buck Dewey, Jenny Pizza, and Sour Cream. These members usually reside in a pack, but they 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 Pizza only)
- "On the Run" (cameo)
- "Alone Together" (Sour Cream only, Jenny & Buck as cameos)
- "The Return" (cameo)
- "Shirt Club" (Buck Dewey is focused on, but Sour Cream and Jenny appear)
- "We Are the Crystal Gems (cameo)
- "Onion Friend" (Sour Cream only, cameo)
- "Historical Friction" (Buck only)
- "Sadie's Song"
- "Drop Beat Dad"
- "The New Lars"
- "Beach City Drift"
- "The New Crystal Gems"
- 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, carefree and counter-dependent, like Amethyst.
- Buck is stern, level-headed and independent, with more going on inside his head than he shows on the outside, 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. At the same time, he's also rebelling against what he's "supposed" to be (a fisherman).
- 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.