Kerrigan Mahan is an American voice actor born on January 27, 1955, recognized for his extensive work in anime dubbing and animated series. He was a prominent figure in the early days of English-language anime localization, contributing his voice to numerous films and series during the 1980s and 1990s, often in collaboration with Streamline Pictures. His career in voice acting began after starting as a stage actor in the 1970s, and he has also worked as a director for dubs and theater productions.

Mahan's voice is known for its range, capable of portraying both youthful, energetic heroes and older, more menacing characters. In the 1980s, he became a familiar voice to fans of imported anime. He voiced the protagonist Kimball Kinnison in the feature film Lensman and its sequel, as well as the character Champ in both the Zillion television series and its sequel OVA, Zillion: Burning Night. During this period, he also took on roles such as Keen in the film Birth and Johnny Winters in Megazone 23 Part II. His work in the horror and sci-fi genre included voicing Rei Ginsei in the Streamline Pictures dub of the classic film Vampire Hunter D and Tatsumia in Doomed Megalopolis. He was also part of the cast for the English adaptation of the popular series Robotech, providing the voice for Sean Phillips.

Beyond these specific titles, Mahan's filmography is extensive. He provided the voice for the iconic cat Jiji in the Streamline Pictures dub of Kiki's Delivery Service and voiced Carson D. Carson in Dirty Pair: Project Eden. His work continued into the 2000s with roles such as Bunta Fujiwara in the Tokyopop dub of Initial D.

In addition to his anime work, Mahan has a long list of credits in American animation and live-action productions. He is particularly well-known to wider audiences for his voice performances in the Power Rangers franchise, most notably as the recurring villain Goldar in Mighty Morphin Power Rangers and Power Rangers Zeo, often credited under the pseudonym Ryan O'Flannigan. He also voiced the original Magna Defender in Power Rangers Lost Galaxy and appeared in other Saban shows like VR Troopers. His other voice credits in American animation include roles in series such as Static Shock, Batman Beyond, and Cow and Chicken. Mahan has also lent his voice to video games, including Star Trek: 25th Anniversary and Lighthouse: The Dark Being.