What started out as a weekly greeting to actor and show listener Jason Isaacs grew to encompass various other listeners of note. These have included:
- Stephen Fry
- Fairport Convention
- David Morrissey (who has also presented the show during some of the many absences of the titular presenters)
- Michael Sheen
- Members of Pentangle (note, not the the whole band. Nor indeed named members. Just 'members of'.)
When saying 'Hello to Jason Isaacs', it is important to leave a pause afterwards, as he is known to say hello back.