Colby Rummell is an English-language voice actor known for work in anime dubbing. One of the confirmed roles is Glenn Dudley in the television series Secrets of the Silent Witch. Additional anime voice credits include the role of Sota in the series Romantic Killer. Rummell also contributed to the series Go! Go! Loser Ranger!, providing voices for multiple characters including Fighter A, Jeering Audience Member A, Ranger HQ Operator B, and Red Squadron Garrison Member D in the first season, and returned for the second season as an Announcer and Fighter A. Another credit includes work on the title DC: Dark Legion.