Katie Holt adopted the alias "Pidge Gunderson" to infiltrate Galaxy Garrison, determined to uncover the truth behind the disappearance of her father, Samuel Holt, and brother, Matthew Holt, alongside Shiro on the Kerberos Mission. Rejecting the official claim of pilot error, she hacked Garrison systems, finding no evidence of a crash on Kerberos, leading to her expulsion and ban. To continue her search undetected, she disguised herself as a male cadet, cutting her hair and wearing non-prescription glasses originally belonging to Matt. Assigned as a communications specialist alongside Lance and Hunk, she kept her distance, prioritizing her investigation. Using self-built equipment, she intercepted alien radio transmissions repeating "Voltron." This discovery coincided with Shiro's crash-landing on Earth. Joining Keith to rescue him, she recognized the crashed ship as Galra. Locating the Blue Lion led the group to the Castle of Lions on Arus, where Princess Allura identified them as the new Paladins. Piloting the Green Lion, Pidge bonded with it during a mission to its jungle planet location, calmed by Shiro quoting her father's wisdom. Her intense focus on finding her family initially conflicted with her Paladin duties, hindering Voltron's formation. After rescued prisoners shared troubling accounts involving Shiro and Matt, Pidge and Shiro investigated Commander Sendak's wrecked ship. Shiro clarified he had injured Matt to protect him from gladiatorial combat. Grateful for this truth, Pidge confided her real identity to Shiro. When Allura later learned the truth via the Space Mice and approached her, Pidge announced her intention to leave the team to search for her family. However, during Sendak's subsequent attack on the Castle, she stayed, sabotaging Galra forces from within and rescuing captured allies. Recognizing her place with the team, she revealed her identity as Katie Holt to all Paladins and chose to remain. Her technical expertise proved vital; she modified the Green Lion with a cloaking device and adapted alien technology. Stranded alone after a corrupted wormhole scattered the Lions, she constructed a communication satellite with the Green Lion's help to locate the team. She later deciphered coordinates embedded in Shiro's prosthetic arm. Pidge eventually succeeded in locating and rescuing Matt, who joined the rebel faction, and later her father, Samuel, who returned to Earth to warn Galaxy Garrison about the Galra threat. Personality traits include exceptional intellect, technical proficiency in hacking and reverse-engineering alien tech, and strong defensive instincts. Her upbringing in a close-knit, high-achieving family fostered confidence but also led to social challenges. She often displayed stubbornness, impatience, and a sharp temper, particularly when challenged or her mission obstructed. Her primary motivation remained finding her family, even expressing willingness to abandon others or sacrifice ethical considerations, such as advocating handing Lotor to Zarkon knowing it meant his death, to secure her father's return. She struggled with forming bonds outside her family circle, projecting familial feelings onto the team over time. As the Green Paladin, her elemental affinity linked her to nature and growth, which she initially disdained before recognizing its underlying patterns and "mathematical elegance." Her appearance is characterized by short, light brown hair, brown eyes, fair skin, and a shorter, slimmer stature than fellow Paladins. She consistently wore the glasses given by Matt. As a Paladin, she utilized standard armor and a Bayard that transformed into an electric dagger capable of functioning as a grappling hook.