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Season 3 of K.C. Undercover was confirmed exclusively by People Magazine on August 1, 2016. On November 1, 2016, Disney Channel officially confirmed the third season. Production began on February 21, and wrapped on September 29, 2017. It premiered on July 7, 2017.
K.C. and her family of spies find themselves hiding from their enemy, Zane, and K.C.'s BFF, Marisa, is right there with them. It's also K.C. and Marisa's last year of high school. So while K.C. is focused on protecting the world from disasters, Marisa is focused on how she can make their senior year epic!
- 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
- Françios Chau as Zane Willis
- China Anne McClain as Sheena
- Haley Tju as Zoe
- Sherri Shepherd as Beverly
- Rick Hall as Agent Johnson
- Connor Weil as Brady
- Riley Litman as Reid
- James DiGiacomo as Petey Goldfeder
- Chandler Kinney as Monique
- Christine Rodriguez as Gwen Pepper
- Claudia de Vasco as Shady Woman
- Pablo Ramos as Rio De Janeiro Local
- Main article: Episode Guide
These are episodes that have confirmed titles and dates.
- 07/07/17 - Coopers on the Run (301-302)
- 07/14/17 - Welcome to the Jungle (303)
- 07/14/17 - Out of the Water and Into the Fire (304)
- 07/28/17 - Web of Lies (305)
- 08/04/17 - Teen Drama (306)
- 08/11/17 - K.C. Under Construction (307)
- 08/18/17 - The Storm Maker (308)
- 08/25/17 - Keep on Truckin' (3??)
- 11/03/17 - Unmasking the Enemy (310)
- 11/10/17 - The Truth Will Set You Free (311)
- 11/17/17 - Stormy Weather (312)
- 11/24/17 - Deleted! (3??)
- 01/19/18 - Second Chances (3??)
- 01/26/18 - Revenge of the Van People (314)
These are episodes that have been confirmed, but the airdate is unknown.
- Three's a Crowd (313)
- The Domino Effect (321)
- Domino 2: (322)
- Domino 3: (323)
- Domino 4: The Mask (324)
- How to Catch a Thug? (3??)
- The Best Party of the Year (3??)
- The Beginning of the End (3??)
- Final Mission (3??)
- Production started after Zendaya finished shooting Spider-Man: Homecoming and 'The Greatest Showman'. As well as Veronica Dunne with 'The Ninth Passenger'. Production began on February 15, 2017.
- K.C. is a senior in high school this season.
- This season premiered the day that Zendaya's Spider-Man: Homecoming came out in theaters.
- This season premieres on Fridays, instead of Sundays, unlike the previous seasons.
- China Anne McClain guest starred this season.
- This was the second time the first episode had "Coopers" in the beginning, first being Coopers Reactivated!.
- Kadeem Hardison will direct an episode this season.
- The Opening Titles (Theme song) have changed this season, with slower speed and new background music.
- This season made K.C. Undercover the fourth Disney Channel Original Series to alter the theme song for a third season after Hannah Montana, A.N.T. Farm, and Girl Meets World.
- The first dozen episodes of the season was composed of three multi-part arcs:
- Coopers on the Run (301-304)
- Web of Lies (305-309)
- The Gathering Storm (310-312)
- K.C. Undercover was Zendaya's second Disney Channel show to have 3 seasons after Shake It Up.
- K.C. Undercover will have a total of 81 episodes and 76 aired episodes.
- It was revealed that K.C. and Marisa will graduate in the final episode.
- This is the final season of the series.
| To view the Season 3 gallery, click here.