Charismatic ex-con and Brian's childhood friend, provides comic relief.
Letty and Roman operate as trusted members of the same field team.
Roman arrives with Letty's crew to report Mr. Nobody's missing device, and later joins the mission in Edinburgh and Tbilisi.
Roman and Tej are a recurring action and technology partnership.
Roman and Tej search for the electromagnet truck in Edinburgh and later enter orbit together in the rocket car.
They coordinate during the crew's pursuit operation.
Roman and Ramsey join the mission in Edinburgh and help pursue the truck carrying the Aries equipment.
Roman helps expand the crew with Sean's driving expertise.
Roman travels to Germany with Tej to recruit Sean for the operation.
They become connected through the extended crew's mission.
Twinkie is recruited alongside Sean by Roman and Tej in Germany.
Explore the full interactive character relationship map of F9
Related entry on Wikidata (Q3940520), public domain (CC0).