Meliodas' dominant traits are his frankness and his utter fearlessness, shown when he remains composed. Due to his horrible cooking, when his customers vomit onto the Boar Hat's floor, he instructs Hawk to clean up the scraps and scares him by saying phrases such as "roast pig" if he complains, hinting he may roast the talking pig. He is also shown to be very bawdy and loves to frequently tell jokes. Occasionally, he takes advantage of Elizabeth's naivety and gropes her breasts, not even ashamed of doing so in public or in front of her father. He also has a strong sense of justice and is willing to help people in distress. Even when he is severely injured, he tries not to show weakness and stays strong in front of his companions. He holds resentment for himself. Despite his title as the Sin of Wrath, he maintains the facade of a very calm person. However, if his companions or friends are harmed in any way, he is shown to be capable of extreme rage. He is also enraged when someone tries to take his sword. It has been hinted that Meliodas is guilt-ridden over the fate of Danafor, saying that his sin was being unable to save the kingdom. He tends to be soft and naive, due to him never killing anyone. He dislikes killing, preferring to be merciful.

Despite all of this, however, Meliodas' personality was once much darker and terrifying, as he was revered to as the vilest and most terrifying demon in existence and no other demon would dare challenge Meliodas when he was the leader of the Ten Commandments and heir to the throne. Although not much has been shown of how he was, Meliodas displays a harsh, arrogant demeanor towards any lesser demon. Whenever using his Demon Mark, Meliodas' personality changes to be similar to that of his old self, becoming cold, quiet, ruthless, and murderous as he kills and attacks anyone near him without mercy aside from Elizabeth. Despite being renowned as a pervert, the Seven Deadly Sins reveal that Meliodas never displayed any interest towards other females before meeting a grown Elizabeth.

If you could sound similar to his English VA, Bryce Papenbrook, that would be great, but it is not required!

English VA Example: https://youtu.be/R6Z4Tp8IulA