‘Trailer Park’ cast trumps lowbrow play

Whatever the virtues and vices of “The Great American Trailer Park Musical” — and there certainly are more of the latter than the former — one must admire how dexterously it walks the line between laughing with and laughing at its characters.

This is, after all, one of those shows whose title tells you exactly what to expect, right up there with “3 Redneck Tenors” and “My Mother’s Italian, My Father’s Jewish & I’m in Therapy!” Anyone shocked by the White-trash stereotypes or the “Jerry Springer” prurience of Arizona Broadway Theatre’s current production needs a sense-of-humor transplant, stat.

And yet, despite the down-and-dirty wordplay, the clunky exposition and the painfully obvious foreshadowing, there are moments when “Trailer Park” rises above its paint-bynumbers premise. And most of the credit goes not to the show’s creators, songwriter David Nehls and book writer Betsy Kelso, but to Arizona Broadway’s irresistible cast.

Sure, Adam Vargas is in full-on doofus mode as Norbert Garstecki, a onetime high-school football star who now works as a tollbooth collector. He’s supporting his wife, Jeannie, who hasn’t been able to leave their home-sweet-trailer-home in Hicksville (OK, technically Starke), Fla., since their baby boy was kidnapped. (Spoiler alert: You don’t need to know “The Importance of Being Earnest” to guess