Fergus Lawless is a professional name used by the American voice actor Vincent Penna Jr., who is professionally known as Wayne Grayson. He is an established voice actor and director with a career spanning several decades, primarily known for his work in English-language dubs of anime series and animated productions.

Grayson has been active in the voice acting industry since the mid-1980s and has lent his voice to numerous characters for studios such as 4Kids Entertainment, NYAV Post, and DuArt Film and Video. He is perhaps best recognized for two iconic roles: Joey Wheeler in the English adaptation of the anime Yu-Gi-Oh! Duel Monsters and its related media, and Michelangelo in the 2003 Teenage Mutant Ninja Turtles animated series. His extensive filmography includes a wide range of other roles, such as Syrus Truesdale in Yu-Gi-Oh! GX, Eneru in the 4Kids adaptation of One Piece, Tokageroh in Shaman King, and various characters in the long-running Pokémon anime. He has also provided voices for numerous video games, including the Grand Theft Auto and Red Dead Redemption series, and reprised his role as Joey Wheeler in Yu-Gi-Oh! Duel Links.