Paul Mercier is an American actor and voice actor, born on July 13, 1962, who has built a prolific career spanning theater, television, and video games. He is widely recognized for his portrayal of the iconic character Leon S. Kennedy in the Resident Evil series, a role he performed in both the video game Resident Evil 4 and the CGI film Resident Evil: Degeneration.

Mercier's path to voice acting was grounded in extensive classical stage training. A third-generation stage actor, he decided to pursue acting professionally during his senior year of high school. He studied at Adelphi University and later trained for three years at the Royal Shakespeare Company at the Guildhall School of Music and Drama in London. This background in verse, improvisation, and stage combat provided a strong foundation for his character work in voice-over.

In the realm of anime and animation, Mercier has lent his voice to several English-dubbed productions. He is known for the role of Bear in the.hack//Sign series, a character he also voiced in its related video game sequels.hack//Mutation,.hack//Outbreak, and.hack//Quarantine. His other anime credits include roles in Burn-Up Excess, Ghost in the Shell: Stand Alone Complex, and Vampire Princess Miyu. He also provided voices for animated series such as The Real Adventures of Jonny Quest.

Mercier's most prominent and celebrated body of work is in video games. His portrayal of Leon S. Kennedy in the groundbreaking Resident Evil 4 is considered a definitive take on the character. He was cast early in the game's production and was given creative freedom to help shape the character's personality, with his performance being well-received by the Japanese development team at Capcom. He reprised the role in the CGI film Resident Evil: Degeneration and the video game Resident Evil: The Darkside Chronicles. Another significant and recurring role was that of Specter, the team leader in the tactical shooter series SOCOM U.S. Navy SEALs, appearing in SOCOM II, SOCOM 3, and SOCOM U.S. Navy SEALs: Combined Assault.

Beyond these signature roles, Mercier's extensive voice work in video games demonstrates his versatility and frequent presence in major franchises. His credits include Jacques Blanc in Onimusha 3: Demon Siege, Private Miller in Call of Duty: World at War, Lieutenant Colonel William Bishop in Ace Combat: Assault Horizon, and Faramir in The Lord of the Rings: Conquest. He also contributed voices to other notable games such as Shadows of the Damned, the Infamous series, and Metal Gear Solid: Portable Ops.

A notable achievement in his career is the longevity and impact of his performance as Leon S. Kennedy, which has been praised by fans and has influenced the character's direction. His work in Resident Evil 4 is frequently cited as a highlight of video game voice acting. Mercier is married to writer and voice actress Paula Tiso. In addition to his acting, he has also worked as a director and screenwriter, and he continues to be involved in live comedy performance in Los Angeles.