Greer Grammer as April, Axl's cute but very very dimwitted girlfriend whom he met over the summer. They briefly married before getting an annulment. They remain a couple until breaking up in the episode "Exes and Ohhhs". Casey Burke as Cindy Hornberger, Brick's quirky girlfriend.

He later developed a crush on Lexie. He started dating Lexie as of The Par-tay, whom he later married in the series finale. In the Series Finale, it is revealed that after Axl and Lexie get married, they are now parents to three boys that behave similar to himself as a teenager.

However, “The Middle” co-creator Eileen Heisler revealed that this was the right time to end the show because the hope is “to leave when people still want more of it.” Heisler added: “The decision for us to end the show was a very personal decision.

She turns 21 later that season, and Frankie comes to college and they get drunk together. In a flash-forward in the series finale, it is revealed that Sue and Sean broke up and got back together a couple of times before finally being married, with Reverend Tim-Tom officiating.