Joe Manganiello is known for his role in ?Justice League? but is now dabbling into fashion. Manganiello will be launching a line of Dungeons & Dragons-themed clothing. According to Comicbook.com, the clothing line will go on sale beginning on SDCC weekend. Those who know the actor know that he is a huge D&D fan. So big of a fan is Manganiello that he is involved in the making of a movie based on the game.