Junichi Inoue is a Japanese actor and voice actor born on August 14, 1958. His career is notable for encompassing work in both live-action productions and animated voice-overs, with some of his most recognized roles dating back to the early 1980s. Before establishing himself as an actor, he was also active as an idol singer and was formerly associated with the talent agency Johnny's office.

One of Inoue's most significant voice acting roles came early in his career when he was cast as the lead character Jomy Marcus Shin in the 1980 theatrical film adaptation of the science fiction manga Toward the Terra. In this story, Jomy is a boy who discovers he is a member of the psychic minority known as the Mu and rises to become their leader, a role for which Inoue provided the voice in this original movie version. The character is depicted as a cheerful troublemaker who evolves into a charismatic leader, and the role remains a key credit in his filmography.

Nearly two decades later, Inoue took on the voice role of another leader in a science fiction setting, this time in the anime series Chō Seimeitai Transformers: Beast Wars Neo, which aired in 1999. He voiced the character Big Convoy, the protagonist of the series and a high-ranking general in the Maximal army. Known by the nickname "the One-Man Army," Big Convoy is a solitary and immensely skilled warrior who transforms into a woolly mammoth. The character is initially antisocial but is tasked with training a group of new recruits, a mission that gradually teaches him the value of teamwork. Inoue's performance captured the character's gruff exterior and his development throughout the series.

In addition to his voice work, Inoue has maintained a career in live-action television and film. His credits from the 1980s include roles in films such as Oar and Tokyo Bordello. He has also appeared in several Japanese television drama series in more recent years, including guest roles in long-running police and detective franchises like Keibuho Yabe Kenzo and AIBOU: Detective Duo. His performance in the 2008 film The Monster X Strikes Back: Attack the G8 Summit is also documented. Information regarding his personal life, such as a previous marriage to fellow actor Keiko Toda, has been reported, though the focus of his public record remains on his professional endeavors.