Yuusuke (ユウスケ, Yūsuke) is a fisherman in the Land of Fire. When he was a child, he and his father tried to catch a giant summoned marlin, they failed, resulting in his father's death. Yuusuke became determined to avenge his father by catching the marlin. Trivia: Yuusuke's appearance was modeled after his seiyuu, singer Yuusuke Kamiji. He also performed Otakebi, the movie theme of Naruto Shippūden 5: Blood Prison, which premiered a week before Yuusuke's debut in the anime. (source: naruto.wikia.com)
Captain of the ship in which Hishaku was part of. (episode 225)
Former leader of the Nadeshiko Village. Decades ago she encountered Jiraiya who has entered her village to do "research" for his next novel. After he escaped she pursued him and challenged him to a duel for his hand in marriage. This match was however postponed, as neither party was making headway against the other. Jiraiya promised that their students instead should one day seek each other out and fight if the two never met again. This promise fell to her pupil Shizuka and Jiraiya's last pupil Naruto Uzumaki. She's presumed to be Shizuka's mother but is not confirmed neither named as such in the credits, instead she's named as "Previous Head of the village (先代里長)". Appears in episode 235. (Source: Narutopedia)
Yukata (ユカタ, Yukata) is a young kunoichi from Sunagakure. Anime Debut: Naruto Shippūden Episode #261 (source: Narutopedia)
Suiren (スイレン, Suiren) was a kunoichi of Kirigakure. Ten years prior to the formation of the Allied Shinobi Forces, Suiren was part of Ganryū's team that was tasked with retrieving a scroll along with a team from Iwagakure taken by Kumogakure shinobi. After retrieving the document, Suiren was excited for the prospects of peace that a mission like this would bring. She was however wrong as Iwagakure betrayed them. After Junsai was killed, Suiren sacrificed herself in order to protect Ganryū. This incident which come to be known as the Tragedy of Yosuga Pass marked the begining of hostility between Kirigakure and Iwagakure. Suiren was a kind and loving person who dearly held onto the ideals of peace. After their mission was seemingly completed she spoke openly of what an alliance like this between Kirigakure and Iwagakure would mean for the shinobi world. She was a very beautiful kunoichi with brown eyes and long blonde hair with two strands framing her face. She wore a pair of earrings along with the standard attire of the Kirigakure-nin complete with forehead protector and flak jacket, along with the jade-green bangle that was worn by her team. Source: http://naruto.wikia.com/wiki/Suiren