He is voiced by Yasunori Matsumoto in the Japanese version of the anime and Mike McFarland in the English version. In the Japanese version of Brotherhood, he is voiced by Yuji Ueda.
Havoc is a tall man (around the same height as Mustang) with blue eyes and short blonde hair. He is usually seen wearing the standard Amestrian State Military uniform, and almost always has a cigarette in his mouth.
A self-proclaimed 'country boy', Havoc is usually rather laid-back and almost never seen without a cigarette in his mouth, but is an honest, loyal and hard-working soldier who leads his own subordinates by example. Although not the most intelligent, Havoc more than makes up for his simplicity with common sense and cleverness - often providing a sarcastic, real-world perspective to counter the over-the-top antics of his comrades - as well as a particularly high combat aptitude.
However, the fair-haired son of eastern Amestrian shopkeepers does have a noteworthy weakness: throughout the series Havoc's poor luck keeping a girlfriend plays a recurring theme, as shown when he is forced to leave a new relationship in East City when being transferred to Central with Mustang and when he is spurned by Major Alex Louis Armstrong's younger sister Catherine Elle Armstrong.
- His English Voice Actor, Mike McFarland is best known for voicing as Ritsu Sohma from Fruits Basket and Master Roshi from Dragon Ball series (Funimation).
- His Second Japanese Voice Actor, Yuji Ueda is best known for voicing as Brock, Froakie, Frogadier, Greninja, from Pokemon and Sagara Sanosuke from Rurouni Kenshin.