Gethin Anthony, who plays gay in HBO's Game of Thrones, says he's straight but not narrow.

Anthony is the latest celebrity to join actor Avan Jogia's Straight But Not Narrow campaign, which Jogia says is about “guys talking to guys about guys who like guys.”

In Game of Thrones, Anthony plays Renly Baratheon, the brother of King Robert.

“We're all human beings, right?” Anthony rhetorically asks in the 90-second PSA. “So, it doesn't matter if you're a guy who likes girls, or a guy who likes guys, or a guy who likes girls and guys, or girl who likes guys and girls, or a girl who wants to be a guy, or a guy who dresses like girls, or a transvestite lesbian stand-up comedian, or a Transylvania vampire lesbian. No wait, they're not human beings, so you can do what you like to him. But all those other categories I mentioned, human beings, right, we're all people. Which means that we deserve each other's respect.”

“So, we're here to say: it's great to be mates with mates who mate with other mates,” he adds. (The video is embedded in the right panel of this page.)

Anthony joins Cory Monteith, who plays Finn Hudson on the Fox musical-comedy Glee, and 18-year-old Josh Hutcherson, a co-star of the lesbian moms film The Kids Are All Right, in recording a PSA for the campaign.