I've not watched Last of the Summer Wine since Compo died, so I'd no idea that he'd been in that.
I know my parents loved Russ. He is from our part of the world and used to live near us, so I'm not sure if that's the reason but we did watch his show each Saturday. I'd forgotten that Les Dennis was in it as well until the devious poster mentioned him
...and the late Dustin Gee- and Michael Barrymore for a time iirc. Along with Bella Emberg Susie Blake and Sherie Hewson.