|“||Don't get all up in my grill again.||”|
—Judy to K.C.
K.C. tries to convince her parents that her brother, Ernie, who is a genius with computers but pretty clumsy at everything else, is ready to become a spy. However, Craig and Kira have a different plan and introduce them to their new little sister, Judy – a sophisticated humanoid robot disguised as a precocious 10-year-old.
K.C. tries to tell her parents that Ernie Cooper is ready to be a spy, even though he can be clumsy. Meanwhile, K.C.'s parents introduce her to Judy Cooper, who is a robot who acts like a 8- year-old girl.
- Zendaya as K.C. Cooper
- Veronica Dunne as Marisa Clark
- Kamil McFadden as Ernie Cooper
- Trinitee Stokes as Judy Cooper
- Tammy Townsend as Kira Cooper
- Kadeem Hardison as Craig Cooper
- Isaiah Watson as Mateo
- Morgan Bertsch as Little girl
- Rick Hall as Agent Johnson
- Terence J. Rotolo as Enemy Spy
- Ed Corbin as Traffic Cop
K.C.: I'm sorry. I got into a fight my brother, so...
Marisa: Well focus in. This is a Marisa moment.
Ernie: A spy never reveals his secrets.
Craig:That's a Magician, boy! Start talking!
Kira: That's my boy!
Craig: Um, excuse me, that's OUR boy!
- One of the main characters, Judy Cooper, makes her first appearance in this episode.
- When Ernie is playing on his laptop at the beginning of the episode, he is using a PDP Afterglow Universal Wireless Headset, which isn't paired to the laptop, nor is its wireless adapter connected to the laptop.
- Judy and K.C keep grabbing hold of each other and flipping each other over.
- The pen K.C. uses beeps for approximately 15 seconds the first time she uses it, then approximately 10 the next two times.
- March 12, 2015 (Australia)
- April 17, 2015 (UK and Ireland)
- May 1, 2015 (Italy)
- May 29, 2015 (Spain and Portugal)
- July 14, 2015 (Israel)
- July 21, 2015 (Latin America and Brazil)
- September 6, 2015 (Czech Republic and Hungary)
- September 11, 2015 (Netherlands and Flanders)
- September 15, 2015 (Germany)
- September 27, 2015 (Bulgaria)
- October 3, 2015 (Poland)
- October 13, 2015 (Turkey - Disney XD)
| To view the My Sister from Another Mother... Board gallery, click here.