K.C. Undercover Wiki
Don't get all up in my grill again.
—Judy to K.C.

My Sister from Another Mother... Board is the 2nd episode in season 1 of K.C. Undercover and the second episode overall. It first aired on January 25, 2015.


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 8-year-old.[1]

Episode Summary

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 looks like an 8- year-old girl.


Main Cast

Recurring Cast

Guest Cast

  • Isaiah Watson as Mateo
  • Morgan Bertsch as Little girl
  • 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!


  • A main character, 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.
  • This episode also marks the first appearance of Agent Johnson in the series.

International premieres

  • 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.



Season 1
PilotMy Sister from Another Mother... BoardGive Me A “K”! Give Me A “C”!Off the GridPhoto BombedHow K.C. Got Her Swag BackDaddy's Little PrincessAssignment: Get That Assignment!Spy-anoia Will Destroy YaDouble Crossed Part 1Double Crossed Part 2Double Crossed Part 3Stakeout TakeoutThe Neighborhood WatchdogsFirst FriendOperation: Other Side Part 1Operation: Other Side Part 2K.C. and the Vanishing LadyDebutante BallerK.C.'s the ManRunaway RobotAll Howls EveThe Get Along VaultEnemy of the State'Twas the Fight Before ChristmasK.C. and Brett: The Final Chapter - Part 1K.C. and Brett: The Final Chapter - Part 2
Season 2
Coopers Reactivated!Do You Want to Know a SecretRebel with a CuzThe Mother of All MissionsAccidents Will HappenBrainwashedThe Truth HurtsDown in the DumpsDance Like No One's WatchingThe Love JinxK.C. Levels UpCatch Him If You CanSup, Dawg?Tightrope of DoomThe Legend of Bad, Bad Cleo BrownSpy of the Year AwardsIn Too Deep, Part 1In Too Deep, Part 2Virtual InsanityUndercover MotherTrust No OneHolly Holly Not So JollyCollision CourseFamily Feud
Season 3
Coopers on the RunWelcome to the JungleOut of the Water and Into the FireWeb of LiesTeen DramaK.C. Under ConstructionThe Storm MakerKeep on Truckin'Unmasking the EnemyThe Truth Will Set You FreeStormy WeatherDeleted!Second ChancesRevenge of the Van PeopleThe Gammy FilesTake Me OutTwin It to Win ItCassandra UndercoverK.C. Times ThreeThe Domino EffectDomino 2: BarbecuedDomino 3: Buggin' OutDomino 4: The MaskK.C. Undercover: The Final Chapter