Appropriately, Lynch's fellow Teen Beach Movie cast member Grace Phipps plays Austin's co-star in that episode.
Beam Me Up, Scotty!: "Boom" is treated as Austin's catchphrase by those who imitate him, despite the fact that he never really says this.
Dawson Casting: Largely an aversion, with Calum Worthy (b. 1991) hardly being an egregious example and the rest of the main cast being 15-16 at the start of filming. note Averted with Laura Marano, however.
Throw It In: Like most scripted shows, occasionally they throw in an error, mistake or an unscripted adlib.
When Ally tries to crayon outside the lines of a coloring book she can't bring herself to do it. Austin grabs her hand and starts coloring in the book. He colored it so hard he broke the crayon. Laura breaks character (which isn't very obvious since Ally's personality matched Laura's pretty closely) saying that he broke the crayon before it ends with the Vanity Plate.
Ally and Austin dancing towards the end of Diners & Daters has an unscripted moment where Ally trips on the couch and falls down into a seated position on the couch. Austin's actor Ross Lynch stops his dancing and nearly breaks character. Before he can Laura stands back up saying it was 'part of the dance' and she keeps dancing. They threw it in.