What actors and actresses appeared in Joanna Lumley the Land of Northern Lights - 2008?

The show "Joanna Lumley's The Land of the Northern Lights" (2008) is a travel documentary, not a scripted drama. Therefore, it features Joanna Lumley herself as the host and narrator, along with various local people and experts she encounters during her travels. There are no other actors or actresses in the traditional sense.