Takaaki Aihara is a Japanese voice actor and actor from Fukuoka Prefecture, born on December 14, 1982. He is a graduate of the 30th term of the Seinenza Actors Training Institute and joined the theatre company Gekidan Seinenza in April 2006. After leaving the剧团 in June 2014, he has continued his career as a freelancer.

Aihara's career encompasses work in animation, video games, and foreign-language dubbing. One of his notable roles in anime is Ryūji Ōmagari in The Prince of Tennis II: U-17 World Cup Semifinal, a character he also voiced in the related game New Tennis no Ouji-sama RisingBeat. Another early television anime role was as Investigator Rick Anami in the 2008 series Secret ~The Revelation~.

His work in dubbing foreign films and television series is extensive. Notable credits include providing the Japanese voice for Robert Leckie in the HBO miniseries The Pacific and for Cesare Borgia in The Borgias. He has also voiced characters in popular series such as Boardwalk Empire, Terra Nova, iCarly, and the animated series Ben 10. His film dubbing work includes roles in The Lone Ranger, The Sorcerer's Apprentice, and the Chinese series New Three Kingdoms, where he voiced Guan Xing.

While information on his training and a range of his roles is available, specific details about recurring creative collaborations with particular directors or a comprehensive list of industry achievements are not documented in the accessible sources.