The O-2 visa is for essential support personnel connected to qualifying O-1 work. It is not a general companion visa and it is not a catch-all work category for colleagues. The role has to be tied to the principal O-1 case and the support has to be important enough that the event, production, or performance would be materially affected without that person.
This category is most often relevant in entertainment and event-based work. The core question is whether the support role is truly integral to the O-1 beneficiary's activity in the United States. If you are still sorting out how O-1, O-2, and O-3 fit together, start with the broader O visa overview.
Because O-2 depends on the principal filing, the case structure usually begins with the main O-1 petition. If the petitioner, employer, or agent setup is unclear, review petitioner and agent support before building the support-staff portion of the case.

