Olivia Charles is a pseudonym for Colleen O'Shaughnessey, a prolific American voice actress born on September 15, 1971, who has been active in the industry since 1990. She uses the alias Olivia Charles for select English-language anime dubbing roles, one of which is the character Sumi Inaba in the series B-Daman CrossFire. Her career in anime voice acting is extensive and includes a large number of major roles in long-running and popular series.

Among her most recognized anime credits are the roles of Sora Takenouchi in the Digimon franchise, Ino Yamanaka and Konohamaru Sarutobi in the Naruto series, and Cho-Cho Akimichi in Boruto: Naruto Next Generations. She has also voiced Nelliel Tu Odelschwanck in Bleach, Mary Hunt in My Next Life as a Villainess: All Routes Lead to Doom!, and the Commander in Nier: Automata Ver1.1a. Beyond anime, she is widely known for voicing Miles Tails Prower in the Sonic the Hedgehog video game and film franchises.

Recurring collaborations are a notable feature of her work, as she has voiced multiple characters across the Naruto, Boruto, Digimon, and Bleach universes for many years. She has worked with various dubbing studios, including Bang Zoom! Entertainment and Studiopolis. A significant achievement is her reprisal of the role of Tails in the live-action Sonic the Hedgehog film series, including the 2020 film and its sequels. Her extensive filmography also includes voice work in numerous other animated series and films, showcasing her versatility and sustained presence in the voice acting field.