Keiichi Nakagawa is a Japanese voice actor born on December 31, 1980, in Shiga Prefecture, Japan. He is affiliated with the talent agency Aksent. Nakagawa launched his career in the early 2000s and has built a diverse portfolio spanning anime, video games, and foreign language dubbing, known for his low and rich voice suited for mature male roles.

Nakagawa's anime roles include several of the characters specified. He voiced Akira Karasuma in the 2019 film Psycho-Pass: Sinners of the System Case.1: Crime and Punishment. He also voiced Shou An in the 2019 series True Cooking Master Boy and Kōhei Yamashita in the 2020 web anime From North Field. Among his most prominent anime roles is Professor Kukui in Pokémon Sun & Moon, a character that became a signature performance. Following the passing of voice actor Unshō Ishizuka, Nakagawa temporarily took over as the narrator for the Pokémon anime. His other anime credits include司马懿沙煞比 (Sima Yi Sazabi) in SD Gundam Sangokuden Brave Battle Warriors, Henning in Attack on Titan, Kazumi Kiyokawa in Giant Killing, and various characters in series such as Beelzebub, Natsume's Book of Friends, and The Kindaichi Case Files.

Beyond anime, Nakagawa has a substantial career in voice-over work for foreign films and television series, a field known as fukikae. He is the regular Japanese dubbing voice for actors such as Chad Michael Collins in the Sniper film series and Park Hae-soo, providing the Japanese voice for his roles in Squid Game as Cho Sang-woo and in Narco-Saints. His dubbing credits also include providing the Japanese voice for Nate Archibald in Gossip Girl and for characters played by actors like Jackson Rathbone in The Twilight Saga and Huang Xiaoming in The Last Tycoon. In video games, Nakagawa's work includes roles in Far Cry 3, the Time Travelers series as Shuichiro Kogure, Giovanni Ziccole in Professor Layton vs. Phoenix Wright: Ace Attorney, and various installments of the Assassin's Creed series.

Nakagawa's career is marked by his versatility and consistent presence across different media. His ability to secure recurring roles as the official voice for international actors highlights his standing in the dubbing industry, while his performance in a long-running and popular series like Pokémon has made him a recognizable talent to a broad audience. He is also known for his work in drama CDs and as a narrator for television programs.