- Hey, It's That Guy!: Lesse, aside from Cameron Frye being the dean and Cordelia and Delia Fisher being ZBZ consultants, there's Jerry Lambert ("...well played, Mauer") as Casey and Rusty's dad, and Dwayne Wayne as Ashleigh's dad, Leah Thompson as Cappie's mom...
- Caroline Forbes really shouldn't be allowed to take care of animals.
- Sanjay apparently transferred to Greendale Community College.
- Could Steve's last name be Holt?
- The ZBZ National President? Babs from Animal House, naturally.
- The Plain White Ts appear in several episodes and in Season 2, it's revealed that they're part of Kappa Tau.
- Betsy is Kyla Woods
- Retroactive Recognition: Travis and Kirsten as Dale's old friend from home and Frannie's big sister Kiki respectively. Also Mike Chang was a background Omega Chi and Naomi and Adrianna were Cappie's mystery girl and Rebecca's fellow ZBZ pledge who ended up in the fountain.
- Hey, It's That Voice!: Homer Simpson as Rusty's physics professor.