Even though "Game of Thrones" came to an end almost four years ago, the franchise lives on in the form of a wildly successful prequel. "House of the Dragon" is the incredibly popular successor to the HBO fantasy series, however, despite its popularity, it’s not so popular among some of the original "Game of Thrones" cast members. While Emilia Clarke refuses to watch the "GoT" prequel, her co-star Kit Harington has the opposite take, however, he's proceeding into the prequel with caution. Kit Harington portrayed the fan-favorite Jon Snow on "Game of Thrones," and he is potentially set to star in his own Jon Snow spinoff. So it wasn't surprising to find out that he has watched some of "House of the Dragon," even praising the series when speaking to Extra. He did admit, though, that it was hard for him to watch, which is understandable given how long he spent on the flagship series.