“They pay us, we kill you. It's just business. No hard feelings, I hope.”
—Jarth before battling
Jarth is an enemy boss character exclusive to Fire Emblem Echoes: Shadows of Valentia. He appears in the DLC chapter Battle of Zofia Harbor as the leader of a mercenary band hired by a trader to fight the Knights of Zofia on their mission to rescue Slayde. Despite his best efforts, Jarth is ultimately beaten.
- Jarth reuses Barth's portrait and head model. His naming theme is also identical to Barth and Garth's as well. Unlike his look-alikes, Jarth is not a criminal and merely a mercenary trying to make a living with no ill will towards his targets.
- Jarth is the only named boss in Echoes to be a direct portrait re-use with no alterations in design or palette.