Lord Hobert Hightower 3 episodes, 2022
King Hywel 4 episodes, 2020
Christy Nolan (1 episode, 2013)
Dave (11 episodes, 2007-2010)
Gerry Cutler (5 episodes, 2010)
D.C.S. Michael Challes 1 episode, 2018
Vic Reed 8 episodes, 2014
Don Baxter 1 episode, 2015