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Season 3 of Andi Mack is the third and final season. The season was announced on February 19, 2018 during a cast interview with Good Morning America. The season premiered on October 8, 2018, and the series finale aired on July 26, 2019. The season consists of 20 episodes (previously 21).
The season started filming in Magna, Utah on June 5, 2018 and wrapped up on December 21, 2018. The season premiered on October 8, 2018..
On April 24, 2019, Disney announced that Season 3 would be the final season of Andi Mack. The series finale aired on July 26, 2019.
Andi is increasingly confident about expressing herself as she navigates her relationship with Jonah Beck and new territory in her long-standing friendships with Buffy and Cyrus. She continues to work on building a family unit with her parents, Bex and Bowie, who are new to parenting but are doing their best through humor, love and open communication. Andi’s grandmother, Celia, is still very much in the picture to provide her with additional support.
- Peyton Elizabeth Lee as Andi Mack
- Joshua Rush as Cyrus Goodman
- Sofia Wylie as Buffy Driscoll
- Asher Angel as Jonah Beck
- Trent Garrett as Bowie Quinn
- Lilan Bowden as Bex Mack
- Lauren Tom as Celia Mack
- Emily Skinner as Amber
- Luke Mullen as TJ Kippen
- Garren Lake as Marty
- Raquel Justice as Kira
- Millicent Simmonds as Libby
- Darius Marcell as Walker Brodsky
- Oliver Vaquer as Dr. Metcalf
- Chloe Hurst as Miranda Patrick
- Eden Grace Redfield as Morgan Patrick
- Stoney Westmoreland as Ham Mack
- 10/08/18 - The Boys Are Back (301)
- 10/15/18 - Howling at the Moon Festival (302)
- 10/22/18 - It's a Dilemna (303)
- 11/02/18 - Hole in the Wall (304)
- 11/09/18 - That Syncing Feeling (305)
- 11/16/18 - Cookie Monster (306)
- 11/30/18 - The New Girls (307)
- 01/18/19 - I Got Your Number (308)
- 01/25/19 - Secret Society (309)
- 02/01/19 - The Quacks (310)
- 02/08/19 - One in a Minyan (311)
- 02/22/19 - The Ex Factor (312)
- 03/01/19 - Mount Rushmore or Less (313)
- 06/21/19 - Hammer Time (314)
- 06/21/19 - Unloading Zone (315)
- 06/28/19 - One Girl's Trash (316)
- 07/05/19 - Arts and Inhumanities (317)
- 07/12/19 - Something to Talk A-Boot (319)
- 07/19/19 - A Moving Day (320)
- 07/26/19 - We Were Here (321)
- Starting with this season, Trent Garrett, who plays Bowie, has been promoted to a series regular.
- The updated intro was released on September 24, 2018, making Andi Mack the seventh series to have a new or updated sequence for the third season after Hannah Montana, A.N.T. Farm, Girl Meets World, K.C. Undercover, Bunk'd and Bizaardvark.
- Starting with Secret Society, all episodes featuring Stoney Westmoreland as Ham Mack were edited to remove his character due to his arrest and criminal charges.
- In addition, Episode 318 was completely shelved because Ham played an important role in it.
- Marty returns this season after missing a total of 27 episodes.
- The season premiered on October 8, 2018.
- Jonah and TJ finally become friends.
- Miranda and Morgan Patrick returned this season.
- Jonah and Amber dated each other once again this season, as they previously dated in Season 1.
- This season took a hiatus after Mount Rushmore or Less to refilm episodes with Ham due to his actor’s arrest.
- This is the final season of Andi Mack.
- Andi Mack is the 18th Disney Channel Original Series to have 3 seasons. As of August 16, 2019, Andi Mack is now the 19th Disney Channel Original Series to have 3 seasons when Disney confirmed the Proud Family will return for a third season, that will launch on Disney+ in 2020. Although, its unknown if The Proud Family will have just 3 or more seasons.
- Andi Mack is also the 77th Disney Channel Original Series, which followed Rapunzel's Tangled Adventure (76) and will be the 74th Disney Channel Original Series to end it's course after Star vs. the Forces of Evil (73rd).
- Kira is the antagonist for the third season as she was somewhat unfriendly towards Cyrus because of his relationship with TJ.
- 'Andi Mack' To End With Season 3 On Disney Channel, Deadline (April 24, 2019)