Junji Kitajima is a Japanese actor and voice actor born on May 13, 1964, in Wakayama Prefecture, Japan. He is affiliated with the talent management firm Arts Vision.

His interest in a career as a voice actor was sparked after attending a public event for the radio program Animetopia. He subsequently enrolled in the Haikyo Acting Institute, the training school affiliated with the Tokyo Actor‘s Consumer‘s Cooperative Society. His classmates there included notable voice actors such as Koichi Yamadera, Rika Matsumoto, and Takumi Yamazaki. After his training, he passed an audition for a replacement role and made his debut in 1985 as Hirose in the television anime series Touch. He later joined Arts Vision.

Kitajima has built a extensive career spanning animation, video games, and tokusatsu (live-action special effects) television. He is known for playing a wide range of supporting and guest characters. In animation, some of his major roles include Arbeo Pippiniden in Mobile Suit Victory Gundam, Gon in the various Tama and Friends projects including the 1994 television series and the 2019 film Tama & Friends: The Stone Statue Mystery, Midi in The Mighty Mightiest Iron Leaguer, and Toshikatsu in Genki Bakuhatsu Ganbaruger. He has also had recurring roles in long-running franchises, voicing characters in One Piece, Crayon Shin-chan, and Case Closed.

In addition to anime, Kitajima has been active in voice work for video games. He has voiced characters in numerous entries in the long-running SD Gundam G Generation and Super Robot Wars series, often reprising his role as Arbeo Pippiniden. In 2023, he voiced the Talking Flower in the critically acclaimed Super Mario Bros. Wonder. He has also contributed extensively to foreign-language dubs of films and television series, including the role of Mark in Friday the 13th.

Kitajima has also made appearances in the Super Sentai series, a genre of Japanese tokusatsu. He provided the voice for Trinoid Number 10, Sharkurumarguerite, in Bakuryuu Sentai Abaranger in 2003, and for Tentei Star Alien Shirogar in Tokusou Sentai Dekaranger in 2004.