Yes.Mark Heap is being discussed, and he was indeed in both Spaced and Green Wing.
(
Dimrill HMS Average Nostril,
Sun 29 Jul 2007, 13:23,
archived)
And Big Train!And The Day Today and Brass Eye
(
Mr.Ons knows you can hear him, Earthmen.,
Sun 29 Jul 2007, 13:42,
archived)