Gawain is the Saber-class servant of Leonardo E. Harwey who fought in the Moon Cell Holy Grail War. His true identity is Gawain from the arthurian legend.
- Origin: Fate/EXTRA
- Gender: Male
- Classification: Knight, Swordsman, Servant, Saber
- Age: Unknown
- Powers and Abilities: Master Swordsman, Skilled with his holy sword, Numeral of the Saint, Magic Resistance, Riding, Charisma
- Weaknesses: Underestimates foes sometimes
- Standard Equipment: Excalibur Galatine
- Numeral of the Saint: It denotes that "3" is the sacred number of the Celts. Only during the three hours between 9 AM and midday and the three hours between 3 PM and sunset, one's power increases three-fold.
- Excalibur Galatine: The Reborn Sword of Victory: Gawain tosses his sword into the air and creates a pseudo sun in the sky above him as he generates a golden large magic circle with a sun symbol in the center under him as he draws the sword behind his back until he unleashes a horizontal slash of explosive flames that pierces through the enemy and erupts into a giant ball of fire that engulfs them.
- None so far
- Roronoa Zoro (One Piece)