Hiroki Aiba is an actor, voice actor, dancer and singer who is affiliated with Grand-Arts. He is best known for his role as Shusuke Fuji in The Prince of Tennis musical series, Tenimyu, and the live film adaptation. He was also part of a young men's three-member streetdancing group called Brights, which was disbanded in 2004. His other most known role was the part of Ryunosuke Ikenami/Shinken Blue in the 33rd Super Sentai series, Samurai Sentai Shinkenger.

His real and former name is 相葉 弘樹 (Aiba Hiroki, reading is the same but the kanji is different). He changed it when he moved to Top Coat in 2011.