|550px | gender = Male | hair = Brown | eyes =Green with a few lines of blue |age = 23 | occupation = College Student, Boss Co. Boss (2012-2016
| family = Ex-Wife April Heck
Mother: Frankie Heck
Father: Mike Heck
Brother: Brick Heck
Sister: Sue Heck
Grandfather (Heck): Big Mike
Grandfather (Spence): Tag Spence
Grandmother (Spence): Pat Spence
Uncle (Heck): Rusty
Aunt (Spence): Janet
Cousin (Spence): Lucy
| friends = Sean Hutch
Brick Heck (Sometimes)
Sue Heck (Sometimes)
| girlfriends = Lexie (2017-) April (2016-2017) Devin Levin (2014-15) Cassidy Finch (2012-2013, 2014) Debbie (2012) (Weird) Ashley (2011, 2012) Morgon Edwards (2010) | appearance = Pilot | portrayer = Charlie McDermott |quotebutton = Quotes |gallerybutton = Gallery |dob = 1994}}
Axl Redford Heck (Born February 1994) is a character that features in The Middle. He is the mischievous, rebellious, athletic, lazy eldest child of Frankie and Mike, and the older brother of Sue and Brick.
Axl began as a freshman at Orson High in season one, and is currently a business major at East Indiana State University on a football scholarship. In season 5, Axl had a college roommate, Kenny, but currently lives with his friend and football time Hutch, who he still lives with in Season 6. Some episodes later, Kenny returns in Axl and Hutch' college room. In Season 8, Axl began dating April, which culminated in their hasty (and ill-planned) marriage and subsequent annulment of said marriage. However, they continued dating. He and April are no longer dating anymore as of Exes and Ohhhs. He currently has a crush on Lexie. He is currently dating Lexie as of The Par-Tay'.
Axl is the stereotypical older brother: sarcastic, lazy, some-what dimwitted and sometimes mean to his siblings. He will often do things without permission, expects others to pick up after him, moan whenever asked to do anything that resembles work and would rather hang out with his friends than be with his family. However, he has shown flashes of kindness to his family occasionally, and is good at heart. He is a trial for Frankie, who wishes he would be more open with her, as he was apparently a very loving "momma's boy" when he was a child, something Frankie seems to want to re-capture. He is very self-absorbed and often referring to himself as "awesome."
In Season 1, Axl maintained an on-off relationship with his "first love", Morgan, but eventually they broke up permanently. A recurring motif through his high school years consisted of him being tricked/otherwise misled into taking Weird Ashley to prom. In his senior year of high school, he was tutored by the valedictorian, Cassidy, and they began dating until they broke up in his freshman year of college. Later, he dated Devin Levin, the cousin of his mother's hairdresser. This ended when they mutually decided to see other people. In Season 8, he began dating April, the "love of his life". In Season 8 Episode 8 ("Trip and Fall"), after realizing that neither of their parents approved, they made the hasty and ill-advised decision to get married. The marriage was quickly nullified in Season 8 Episode 9 ("A Very Marry Christmas"). He and April broke up in Exes and Ohhhs. He now has a crush on Lexie. He is now dating Lexie as of The Par-Tay.
- Thirty-two is Axl's number in the football and baseball team.
- His favorite color is green.
- He likes donut holes.
- He is Mike's favorite child.
- He attended summer school.
- He is shown to care about Frankie (helped her when she went back to school).
- He loves bananas and poles.
- He likes pizza.
- He is always in his boxers when he's at home. During the summer when he was a lifeguard, he stayed in his boxers and went barefoot the entire summer.
- He was once suspended from school and was forced to work at the quarry as punishment.
- Out of his two siblings, Axl seems to like Brick the most (this is shown in the episode "Twenty Years").
- Although he is often mean to Sue, he's shown from time to time that he really does loves her.
- His first girlfriend, Morgan, broke up with him five times.
- He is often sitting on the couch in front of the TV. Many times he is seen watching TV with only in his boxers.
- He had a band with his friends, Sean and Darrin called Axl and the Ax-Men. Sue temporarily changed the name to Daseanax (Darrin+Axl+Sean).
- He was married to April for a brief period of time begining in S8E8, but the marriage was quickly nullified in S8E9 as both parties (thanks to their parents) realized it was a bad decision. They broke up in Exes and Ohhhs because he doesn't feel like their right for each other and he really really likes Lexie.
- He's now dating Lexie.