|Season 1||Season 2||Season 3||Episode Guide|
Season 2 of Andi Mack was announced on May 25, 2017. Production resumed in Magna, Utah on July 11, 2017. A preview of the season aired ahead of the Descendants 2 premiere on July 21, 2017. On September 11, 2017, Disney Channel announced through twitter that Season 2 will premiere on October 27 with a one hour special.
The second season was scheduled to wrap on October 5, but on November 14, 2017, Asher Angel confirmed that the second season would wrap in February 2018. On February 13, 2018, Trent Garrett shared a script from the Season Finale of Andi Mack, episode 226, confirming the second season was given 26 half hour episodes. The season wrapped production on Saturday, February 17.
Andi is anchored by her loving albeit complicated family. She's also in a trio with Cyrus and Buffy - her smart, supportive friends who are figuring out the most useful "hacks" to their young teen lives, too. Then suddenly, there's all new territory for Andi to navigate - the possibility that Jonah Beck might like her, too. Andi proves her greatest strength may lie in her ability to approach life's unpredictability with optimism. She also finds solace by tapping into her creativity in her backyard hideaway, the Andi Shack.
- Peyton Elizabeth Lee as Andi Mack
- Joshua Rush as Cyrus Goodman
- Sofia Wylie as Buffy Driscoll
- Asher Angel as Jonah Beck
- Lilan Bowden as Bex Mack
- Lauren Tom as Celia Mack
- Stoney Westmoreland as Ham Mack
- Emily Skinner as Amber
- Trent Garrett as Bowie Quinn
- Garren Stitt as Marty
- Molly Jackson as Iris
- Chelsea T. Zhang as Brittany
- Anson Bagley as Gus
- Oliver Vaquer as Dr. Metcalf
- Chloe Hurst as Miranda Patrick
- Colby James Strong as Kip
- Chiara Auriella as Paige
- Shelby Simmons as Natalie
- Anthony Rey as Gabriel
- Luke Mullen as TJ Kippen
- Main article: Episode Guide
These are episodes with both confirmed titles and dates.
- 10/27/17 - Hey, Who Wants Pizza? (113-201/2-99)
- 11/03/17 - Chinese New Year (202)
- 11/10/17 - Friends Like These (203)
- 11/17/17 - Mama (205)
- 11/24/17 - The Snorpion (206)
- 12/01/17 - I Wanna Hold Your Wristband (207)
- 01/15/18 - Head Over Heels (208)
- 01/19/18 - There's a Mack in the Shack (209)
- 01/26/18 - You're the One That I Want (210)
- 02/02/18 - A Good Hair Day (204)
- 02/09/18 - Miniature Gulf (211)
- 02/16/18 - We Were Never (212)
- 02/23/18 - Cyrus' Bash-Mitzvah! (213-214)
These are episodes that have been confirmed, but the airdate is unknown.
- Production began on July 11, 2017 and wrapped on February 17, 2018.
- On August 20, 2017, it was announced that Disney Channel had ordered an additional 5 episodes to the second season.
- "Tomorrow Starts Today" music video debuted on October 20, 2017 on Vevo and Disney Channel. It was released early on October 19, 2017.
- In addition to the season premiere, Disney Channel had a Season 1 marathon starting at 2 PM on October 27th, with new episodes airing every Friday from November 3rd through December 1st.
- During the Season 1 marathon, sneak peak clips of Season 2 were shown.
- An episode directed by Kenny Ortega will feature cameos from cast members of the HSM franchise.
- Cyrus will question his sexuality.
- According to many articles, it's revealed that this season will revolve around Andi and her parents getting back together and the start of Cyrus' journey of self-discovery.
- On October 25, 2017, major entertainment news outlets broke out the news confirming that Cyrus will come out to Buffy during the one hour special season 2 premiere.  Cyrus will be the first LGBT- main character on a U.S. Disney Channel show.
- If you're counting other Disney Channel shows, The Lodge has been the first Disney show to feature a gay main character (Josh portrayed by Joshua Sinclair-Evans) while Cyrus Goodman is the second Disney Channel gay main character. Though, he is the first one in a U.S. Disney Channel show while Josh is part of the U.K. Disney Channel series.
- The only other gay characters shown on Disney Channel before Andi Mack were guest characters on Good Luck Charlie and Star vs. the Forces of Evil.
- There was a special Andi Mack event in January called "Mack-Uary" and the first ever Disney Channel Cast Party as well.