In the UK stunt department, a specialist Stunt Wire Artiste/Technician (STUNT Rigger) who is a member of the BSR, is primarily a performer and brings that experience to bear in creative rehearsal, pre-vis and performance, as part of the stunt team. They are typically interchangeable with other stunt team members (health and safety reasons) and they should always have an Equity contract. If overseas, an equivalent SAG-AFTRA stunt performer contract may apply.
A rigging/grip department Rigger or Wireman, who primarily flies equipment and may be a BECTU member should have a BECTU contract.