Star Trek: The Next Generation's Data remains one of the most iconic androids in fictional history. His confusion and appreciation for human behavior provided a much-needed outside perspective to the day-to-day social systems on the Enterprise. Data remains a part of the franchise in modern incarnations, appearing regularly in Star Trek: Picard. Though Data is the face of the family, he's the youngest of his creator's artificial children. His prototype older brother B-4 is less iconic.