Professor Spencer Hale is a Pokémon researcher from the town of Greenfield in the Johto region, where he lives in a large mansion with his wife and young daughter Molly. He is a former top student of Professor Oak and a childhood friend of Delia Ketchum, and he is regarded by his fellow researchers as highly intelligent and kind. His professional focus is the study of rare and mysterious Pokémon, particularly the enigmatic glyph-like creatures known as Unown, which fascinate him to the point of near obsession.

As a father, Spencer is affectionate and gentle when he is with Molly. The film opens with him reading her a book about legendary Pokémon, and the two play together until an urgent message interrupts their time. Before leaving for newly discovered ruins, he tells Molly to think of him in her dreams, a moment that captures both his warmth and the constant pull of his work. Because his research demands travel and long hours, Molly is often left at home under the care of the household staff, and his dedication to the Unown project has placed strain on his family life.

The story begins in earnest when Spencer and his assistant Skyler explore an ancient ruin in the desert. Spencer photographs the symbols carved into the walls and uncovers a box of tablets bearing the forms of the Unown. When he handles several tablets, the Unown appear around him and pull him into their dimension, leaving no trace behind. His sudden disappearance leaves Molly alone, as her mother is absent as well. In the English version of the film, his wife is said to have disappeared while researching the Unown, a project Spencer was also part of, while the Japanese original implies that she left the family.

Spencer’s role in the story is that of a catalyst whose absence sets the entire plot in motion. He appears in person only briefly at the beginning and again near the end, yet his relationship with Molly defines the emotional core of the film. After he vanishes, Molly finds the Unown tablets, and the creatures respond to her grief by granting her wishes. They transform her home into a crystal palace and create an illusory Entei to serve as the father figure she desperately wants, and the consequences of that magical arrangement drive the central conflict. Molly eventually learns to let go of the illusion, accepting that the imagined Entei is not her real father.

The film’s resolution sees the Unown return to their dimension and release Spencer, restoring him to the ruins where he vanished. He awakens to find Skyler, Professor Oak, Delia, and the others nearby, and he is joyfully reunited with Molly. In the closing scenes, his wife also reappears, completing the family reunion. Spencer’s development is tied to this restoration: his time trapped in the Unown dimension and the pain his absence caused his daughter highlight the cost of his obsession, and the film ends with him visibly relieved to have his family whole again.

Spencer’s notable abilities are scholarly rather than combative. He is a respected research scientist with deep knowledge of Pokémon, especially the Unown, and he possesses the insight needed to recognize the importance of ancient ruins and symbols that others might dismiss. He plays no significant part in battles; his strengths lie in his expertise, his reputation, and the genuine affection he holds for his daughter, which ultimately proves stronger than the forces that separated them.