Clive appears as a secondary antagonist in the anime Arc the Lad, depicted as a mysterious and manipulative figure who serves as a primary agent of the main villain, Lord Andel. His background remains largely unexplored, with the narrative providing few details about his origins or how he came to be aligned with Andel's cause. He is presented as a sorcerer or dark arts practitioner with considerable power, though the specifics of his training or past are not elaborated upon.

Clive possesses a cold, calculating, and deeply sinister personality. He is characterized by his unwavering loyalty to Andel and a shared ambition to plunge the world into darkness, as reflected in his own words: "I can feel the darkness. This is the world I wanted to create". He operates with a calm and patient demeanor, preferring strategic manipulation and subterfuge over direct confrontation. Despite this composed exterior, he is thoroughly evil, showing no remorse for the suffering he causes and displaying a dark emotional state that becomes more apparent as the story progresses.

Clive's primary motivation is the furtherance of Andel's overarching scheme for world domination. He is intensely focused on the successful completion of their evil plan, which involves the use of the Holy Mother to give birth to Chimera monsters and the unsealing of an ancient, terrible evil contained within the Holy Ark. He is driven by a desire to see this dark new world come to fruition, acting as the principal executor of Andel's will.

In the story, Clive functions as the principal field commander and strategist for the antagonists, consistently working in the shadows to undermine the heroes. One of his most critical actions is the kidnapping of a young girl named Lieza, who possesses immense spiritual power. He and Andel intend to use her power for their own sinister purposes. Initially, she was intended to become the next Holy Mother, but her power proves too great for this role, leading Clive to devise other, even more nefarious plans for her. He is also responsible for tracking the protagonists, successfully following the airship Silver Noah back to the Shrine of the Spirits, a secret sanctuary, thereby exposing its location to Andel.

Clive's key relationships are primarily defined by his service to Lord Andel, with whom he frequently meets to plot their next moves. He views the young girl Lieza as a crucial instrument for achieving his goals, using his powers to hypnotize and control her. He also demonstrates an analytical view of potential threats; he observes Kukuru, the shrine maiden, and later acknowledges that Lieza is "more formidable than he had expected," indicating a grudging respect for her latent power.

Clive does not undergo a significant redemptive or positive development arc. His character remains aligned with the forces of darkness throughout the series. However, the narrative does provide greater insight into his emotional state in later episodes, revealing a personality that is "just as dark and evil" as his actions suggest, with no indication of internal conflict or turn towards good. He remains a committed villain, focused on his goals until the final confrontation.

Clive's notable abilities include powerful skills in dark magic and sorcery. He is shown to be capable of hypnotizing others, using this ability to control Lieza and force her compliance with his plans. He is also a skilled strategist and manipulator, able to set complex traps and track his enemies effectively. His power is significant enough to pose a serious threat to the protagonists, requiring a coordinated effort to overcome.