|“||I don't wanna ruin her life. She should have the same opportunity to ruin her life that I have.||”|
- Zendaya as K.C. Cooper
- Veronica Dunne as Marisa Miller
- Kamil McFadden as Ernie Cooper
- Trinitee Stokes as Judy Cooper
- Tammy Townsend as Kira Cooper
- Kadeem Hardison as Craig Cooper
- Jonathan Silverman as Mitch Bishop
- Kirsten Nelson as Danielle Bishop
- Kirrilee Berger as Amy Bishop
- Ashley Tavares as Ms. Schaffer
| To view the The Domino Effect gallery, click here.
- This is the first episode of the four-part "Domino Effect" arc.
- It was revealed that K.C. and Amy have known each other since the Eighth grade.
- K.C. tried to pass herself as her fictional cousin, Cassandra Bailey again.
- The character of "Susie," had a few lines which were cut, which would have revealed she named her goldfish, "Goldie."
- Also cut, were lines of how hot Bruno Mars was despite the fact the girls towered over him, and that K.C. and Amy once took Spanish together.