Hercules and Megara Costumes for Halloween and Cosplay Dress up as Hercules or Megara for Halloween or cosplay. Find Hercules and Megara costumes for adults and kids, plus all the accessories you need to complete your look! Also find the muses of Olympus (Calliope, Melpomene, Thalia and Clio) costumes and wigs. This article contains affiliate links. Please read our disclosure policy. Kids Greek Goddess Costume Hercules is the Roman equivalent of the Greek divine hero Heracles, whose many far-ranging adventures earned him the reputation as the greatest hero of all time. His mighty deeds are depicted in the movie Hercules, which featured an array of stunning costumes and accessories. Thalia is a young, beautiful and sweet Greek Goddess who portrays Hercules’ loving wife. She wears a simple white sleeveless dress and pairs her look with a pair of white heels. If you want to add a little more bling to your Thalia costume, try this gold wreath with 5 star reviews.