Robert has light, blond hair, dark brown eyes, fair skin and a graying beard. He wears a button-up white, blue and purple long sleeve shirt.
As Steve's father, Robert acts kind, polite, warm, and hospitable. He is also secretive, and doesn't want Steve telling others (including Nadia) about their past. It is unknown how he acts as Steve's handler.
Steve was originally thought to be Robert's son. It was later revealed in Chapter 10 that he is Steve's handler.
Even though Hayden appears to meet Robert for the first time in Book 1, Chapter 5, when asked, Hayden says there is something familiar or nostalgic about Robert.