“Game of Thrones” was all about giving screen time to the Seven Kingdoms’ power players, like Emilia Clarke, Kit Harington, Peter Dinklage, and Lena Headey. But every once in a while, the HBO fantasy series slipped in some great celebrity cameos — though a few were so discrete you may have missed them.
Sure, you remember Ed Sheeran as a singing soldier (literally, how could anyone forget that?) and by now you certainly know about the “GoT” Season 8 premiere’s big connection to “It’s Always Sunny in Philadelphia.” But TheWrap is willing to bet all the precious Dragonglass in Westeros you haven’t caught every famous face that’s dropped by “Game of Thrones” unannounced.