Nobuharu Udo (有働 ノブハル Udō Nobuharu), nicknamed "Nossan" (ノッさん) by his friends, is Kyoryu Blue (キョウリュウブルー Kyōryū Burū) of the Kyoryugers. Nobuharu is 32 years old at the beginning of Kyoryuger. He is the oldest member among the six main Kyoryugers.