Rhiannon works under the oversight of a British advisory covering group to whom she keeps herself accountable. The members are:
- Dr Derek Munday [email protected] (group leader – former leader of Christians in Caring Professions)
- Dr Mary Munday [email protected]
- Peter Leavers [email protected] (leader of Antioch church, Colwyn Bay, Wales, where Rhiannon is part of the wider leadership)
- Brian Mills [email protected] (International leader of InterPrayer)
- Maggie Hughes [email protected] (who has accompanied Rhiannon on some ministry trips)
- Dave Bankhead [email protected] (‘We are One’ Ministries)
- Rev George De Vyust [email protected] (Resonate Global Missions, leader of the reconciliation ministry in Ukraine)