My sister Madison and I are always together. I love being with her... she's so much fun and so funny.
—Demi in an interview with Scholastic News
Madison Lee de la Garza (born December 28, 2001) is Dallas & Demi's younger maternal half-sister. According to that, she is also an American child actress. She is best known for her role as Juanita Solis on Desperate Housewives. Madison is very close to Demi. Madison had a small role on Demi's show, Sonny With a Chance as the child version of Sonny Munroe. She also skipped a grade at her school and currently has a YouTube channel.
- Madison's English-American & Irish-American on Dianna's side & Mexican-American on Eddie's side.
- Madison's full name in Mexico is Madison Lee de la Garza-Smith.
|2008||Jonas Brothers: Living the Dream||Herself||"Rockstars in Training" (season 1 episode 13)|
|2008–12||Desperate Housewives||Juanita Solis|| Recurring role (seasons 5–7); Main role (season 8)|
|2009||Sonny with a Chance||Young Sonny Munroe||"Cookie Monsters" (season 1 episode 20)|
|2009||Princess Protection Program||Camera Girl||Television film|
|2012||Demi Lovato: Stay Strong||Herself||Documentary|
|2014||Good Luck Charlie||Zoe||"Accepted" (season 4, episode 18)|
|2014||Bad Teacher||Kelsey||Recurring role|
|2014–16||Muertoons||Bibi||Voice; Main role|
|2016||Caged No More||Constanza|