Throughout Sword of Mana you mainly play as either the hero or heroine, depending on who you choose. However, there are several other characters that fight alongside you on your journey.
Protagonists
Hero
Heroine
The heroine of Sword of Mana was supposed to go off and seek her fortunes when soldiers from Granz attacked the village. Years after the death of woman she considered her mother, she goes off in search of the truth and the people who saved her all those years ago.
Willy
Antagonists
Julius
Julius is one of Dark Lord's trusted partners. Nobody knows a great deal about Julius, he is said to be neither human nor Manvole and can be very rash and untrusting. He often does things behind Dark Lord's back.
Dark Lord
Originally called Prince Stroud, he became bitter against Vandole and the Mana Clan for not using their magic to save his wife Lady Medusa and ordered the execution of all those who believed in and prayed to the Mana Goddess, calling them Heretics. Those who he had captured were made slaves and forced to fight monsters in the Granz Castle arena.