Mahad is a significant supporting character in the story of Sinbad, originally introduced as an antagonist before becoming a loyal ally and founding member of the Sindria Trading Company. His past is rooted in the harsh realities of the Parthevia Empire, where he and his childhood companion Vittel grew up as war orphans. With no other means to survive, the two resorted to theft until they were eventually recruited into Sham Lash, the empire's covert unit of assassins. This organization is where Mahad also met his future comrade, Ja'far.

Physically, Mahad is an imposing figure. He is a tall man with a massive, muscular physique, and his entire body is covered in the numerous scars of past battles. His appearance is further distinguished by his very long hair, a turban, and a long piece of cloth that wraps around the lower part of his face and extends down to his legs. Cords are also seen twisted around his limbs.

In terms of personality, Mahad is defined by his quiet and stoic nature. He speaks very little, allowing his actions and observations to communicate for him. Despite his intimidating and scarred exterior, he has a keen eye for detail and is exceptionally skilled at observing the people around him. This perceptiveness extends to a genuine capacity for taking care of others, particularly his employees and comrades, revealing a gentle side that contrasts with his history as an assassin. His quiet demeanor makes him a steady and reliable presence within the group.

Mahad's role in the story begins under the command of Drakon, who was tasked with capturing the young adventurer Sinbad. Along with Ja'far and Vittel, Mahad was deployed as part of a team to ensure the mission's success. This leads to a confrontation in the dungeon of Valefor, where he is paralyzed by one of Drakon's magical firearms while attempting to steal it on Ja'far's orders. However, following the events of the dungeon and Sinbad's subsequent defeat of Barbarossa, Mahad chooses to abandon his life as a killer. He becomes one of the founding members of the Sindria Trading Company, serving as a merchant and leaving his violent past behind. This transition from a shadowy agent of a warmongering empire to a trusted businessman is central to his character's role. He is driven by a deep sense of gratitude towards Sinbad, who provided him with an alternative path in life, and shares Sinbad's dream of building a new nation that can change the world.

Mahad's key relationships are primarily with his former Sham Lash comrades. His bond with Vittel is especially deep, as the two have been together since childhood, surviving the streets and the assassin organization as a pair. Because Mahad is so silent, Vittel often becomes the voice for him and the duo. Along with Ja'far, the three of them form a core unit of former assassins who are fiercely loyal to Sinbad. His relationship with Sinbad itself is foundational to his character development; it evolves from a purely adversarial one to a partnership built on loyalty and a shared vision for the future.

Mahad's notable abilities are a direct reflection of his past life as an assassin. His primary asset is his enhanced physical strength, which is far beyond that of a normal human. This power allows him to fight effectively in close-quarters combat and perform feats of immense strength. His combat style is a specialized one, utilizing rope darts as his weapon of choice, suggesting a proficiency in techniques that combine his brute force with precision strikes. His physical power, combined with his calm and unreadable demeanor, made him an effective operative for Sham Lash and later a formidable protector for the Sindria Company.