Head Mater Carwes is Louie's adopted father and master of the Magician's Guild. During his youth he was also an adventurer and a very powerful magician.

Louie, a brawny student at the mage's guild, is reluctantly accepted by three girls (Merrill-thief, Genie-fighter, and Melissa-priestess) as a companion for their adventuring party. As the foursome explore ruins, battle dark creatures, and make new friends, they also uncover a sinister plot within the kingdom.
 
(Source: Anime News Network)

Mugihito is a Japanese actor, voice actor and narrator from Musashino, Tokyo. Mugihito was formerly credited under his birth name and also Mugihito Amachi (天地麦人).

[Synchronkartei](https://www.synchronkartei.de/sprecher/160/2)

On the great continent of Alecrast exists the Kingdom of Swords, Ohfun. Louie, an unorthodox magician with hulking muscles from the Magician's Guild, spent his days surrounded by women, booze, and brawls. But on the night of celebrating his promotion to Sorcerer with his colleague, Aila, he comes across a scuffle between knight apprentices and 3 female adventurers: Merrill, Genie, and Melissa. Unable to resist the urge, Louie jumps into the fray.... (Source: Kadokawa, translated)

Few would consider Louie to be a sorcerer - especially Melissa, Merrill, and Genie. (After all, what kind of "sorcerer" spends his time drinking at bars and beating the stuffing out of the local street toughs?) But much to the chagrin of these three gorgeous female adventurers, divine will has dictated that Louie, the enchanter-gone-street fighter, is in fact a prophesized hero--who they must pledge themselves to serve! Could this bad-boy possibly have what it takes to be a hero? Or has the war god Mylee made a mistake? With a bevy of babes at his side, Louie launches into a series of adventures that range from the harrowing to the bizarre. Get ready for swords, magic, and lots of black eyes and broken noses, because when Louie fights, it's no holds barred! 
(Source: ADV)