The pile up against Newsweek continues as the Screen Actors Guild (SAG) jumps into the fray.

On Thursday, the nation's largest union for working actors took a swipe at Newsweek for running a story by openly gay contributor Ramin Setoodeh critical of gay actors who take on straight roles.

“Unfortunately, harmful attitudes like those of Setoodeh are used to pressure actors to stay in the closet,” Jason Stuart, chair of the SAG National LGBT Actors Committee, a group that supports openly gay, lesbian, bisexual and transgender actors, said in a statement.

In the feature, titled Straight Jacket, which appeared on the weekly's website on April 26, Setoodeh cuts into Sean Hayes' portrayal of straight man Chuck in the Broadway revival of Promises, Promises: “He comes off as wooden and insincere, like he's trying to hide something, which of course he is.” Hayes, who recently came out gay on the cover of gay glossy The Advocate, has been nominated for a Best Actor in a Musical Tony Award for his Broadway debut.

Setoodeh also takes aim at Jonathan Groff's performance on Fox's musical comedy hit Glee, saying he's “so distracting, I'm starting to wonder if Groff's character on the show is supposed to be secretly gay.”

Intentional or not, Ramin Setoodeh's wrongheaded argument sends a damaging and false message that we are limited in the roles we are able to play,” Stuart added.

Openly gay Mad Men co-star Bryan Batt said the piece “saddened” him, adding that “gay actors have been playing straight since Euripides.”

Earlier in the week, the Gay & Lesbian Alliance Defamation (GLAAD) joined openly gay Glee creator Ryan Murphy in urging Newsweek to apologize. Murphy asked fans to dump Newsweek until an apology is at hand, and demanded the weekly apologize to Hayes and other “brave out actors who were cruelly singled out in his damaging, needlessly cruel, and mind-blowingly bigoted piece.”