Lieutenant Jens serves in the Dogisian military, originating from the planet Dogisia. She operates covertly on Earth with the primary objective of monitoring and undermining Eris, the ambassador from the rival Catian civilization. Her mission stems from the longstanding interstellar conflict between the Catian and Dogisian races, which has persisted for decades or centuries, resulting in severed diplomatic relations. Dogisian law explicitly prohibits establishing new alliances with other species due to prior incidents, compelling Jens to ensure humanity rejects the Catians.

Jens orchestrates sophisticated sabotage operations and covertly appropriates advanced alien technologies to disrupt diplomatic efforts between Earth and Catia. She commands subordinates with a strict, authoritative demeanor and forms tactical alliances with human clandestine organizations to further her objectives. Jens is characterized as a formidable antagonist, often described as the "Big Bad" due to her role in masterminding complex schemes to derail interspecies relations.

Physically, Jens possesses canine traits, notably dog ears. She has ochre hair, blue eyes, and stands 1.73 meters tall. Her attire typically includes a collar, tie, and thigh-high boots, reflecting her military background and alien heritage. Despite her ruthless professional persona, she displays personal quirks such as enjoying terrestrial television programs, particularly anime and science fiction, during downtime. She often relaxes alongside her personal robotic companion, Muttley.

Jens utilizes advanced Dogisian technology, including powered armor noted for its combat effectiveness. This armor contains a critical vulnerability: it deactivates automatically if the wearer attempts to attack another Dogisian, serving as a built-in safeguard against internal conflict. Her persistent efforts to sabotage human-Catian relations form a central conflict within the narrative, positioning her as a dedicated adversary aligned with her species' political directives.