Crono
This is Crono. He's the hero of the game. He's an excellent swordsman who uses Lightning magic. His combo moves are strong and for most he is involved. Crono meets a cruel fate. Maybe somehow you can alter time.
Marle
Meet Marle. She's a strong girl with an independent spirit. She bumps into Crono at the Millenial Fair and then asks Crono to see the fair with him. In reality she is Princess Nadia of Guardia. She's uses a crossbow and Water magic. She falls in love with Crono slowly.
Lucca
Say Hi to Lucca. She's an inventor genius and Crono's best friend. Her Telepod begins the chain of events which sends Crono and company through a time-traveling adventure. She uses a gun and Fire magic.