Louie Stream is an original character created for the 1989 anime television special adaptation of Time Patrol Bon, as he does not appear in the original manga. He is the older brother of Ream Stream, one of the series’ main Time Patrol agents. Unlike his sister, Louie becomes a time criminal, but he is not driven by malice; he is described as a non‑malicious antagonist whose actions stem from his scientific pursuits. His background as a scientist informs his motivations, which are rooted in curiosity or personal convictions rather than a desire to cause harm. In the story, he serves as a foil to Ream and her partner Bon, opposing the Time Patrol’s mission by tampering with history. His key relationship is with Ream, and their sibling bond adds a layer of personal conflict to his role as an adversary. Because the 1989 special is a single television film, Louie’s development is limited to that narrative, but his non‑evil nature allows for moments of nuance and possible reconciliation. He is notable for his expertise in time‑travel technology and his willingness to use it for his own ends, making him a capable and intellectually formidable opponent.