Maggie Matherson is a key member of the Space Knights, the special defense force fighting against the alien Radam invasion. She serves as the team's computer mechanic and inventor, bringing her considerable technical expertise to bear on the problems the group faces. Her role is primarily a support function within the organization, as she does not typically engage in direct combat.

In terms of personality, Maggie is known for her intelligence and resourcefulness, often being the one to devise technological solutions to seemingly insurmountable problems. She is a dedicated and capable member of the team. Within the group dynamic, she develops a platonic love for the protagonist, Tekkaman Blade. This unrequited affection adds a layer of personal motivation to her professional dedication, as she is deeply invested in his well-being and success.

Maggie's most significant contribution to the story's plot is her engineering of a solution after Blade's transformation crystal is shattered in battle, leaving him unable to become Tekkaman Blade. While the hero sinks into despair, it is Maggie who successfully develops a battle robot. This robot, which comes to be named Pegas, is designed to hold the shards of the broken crystal and amplify its power. By creating the Pegas unit, Maggie directly enables Blade to regain his ability to transform and continue fighting against the Radam, making her instrumental to the team's ongoing survival and efforts. Her relationships with her fellow crew members are those of a trusted colleague, working alongside the pilot Noal, navigator Aki, communications officer Milly, and mechanic Honda under the command of Commander Heinrich Freeman.

It is worth noting that the character of Maggie Matherson is a specific creation for the localized English version of the series, known as Teknoman. In the original Japanese anime, Tekkaman Blade, the corresponding character is a male named Levin, who presents in an effeminate manner. For the Western adaptation, this character was rewritten and voiced as a woman named Maggie to avoid content that broadcasters felt was unsuitable for young audiences. Despite this change in gender presentation, her core function as the team's computer expert and the inventor of the Pegas unit remains consistent with the original character's role. Her technical ability to construct advanced machinery like Pegas is her primary and most notable skill, one that directly impacts the narrative's progression.