Sammy held the role of prison doctor at a maximum-security facility incarcerating Bavi Stock. He doubled as Bavi’s boxing trainer, backing him during a rigged match demanded by the cruel warden, who commanded Bavi to lose. Ignoring the warden’s threats, Sammy spurred Bavi to fight authentically, securing Bavi’s win. When galactic police agent Kate Lee Jackson arrived to extract Bavi, Sammy allied with her during a prisoner uprising, fleeing the prison alongside Kate, Bavi, and the mute girl Mooma.

After uncovering the Galactic Police Force headquarters’ destruction, Sammy directed the group to his home planet, assumed neutral. There, he competed in a hovercraft-style skysled race, exploiting his event familiarity. Mid-race, Sammy clashed with the Empire’s android Iceman while Kate fought the esper Lady Lus Mila. Subsequently, Sammy cohabited with Bavi, Kate, and Mooma in a surrogate family arrangement.

The second OVA episode rendered this family dynamic comedic, though Sammy’s background and progression saw minimal exploration past the established premise. No further canonical media elaborated Sammy’s role or origins.