He had a very distinctive voice that made him easy to spot in a show. And he was an actor that in another world might have been a major star. I remember him from HHGTG and Adrian Mole but he was fantastic as Phillip Swallow in the adaptation of Small World, one of my favourite novels.
"There's a horror movie named Alien? That's really offensive. No wonder everybody keeps invading you."
How sad to hear. A great actor with a gift for imbuing lines of dry comedy with meaning and gravitas. My absolute favourite Marvin scene is his brief appearance in So Long and Thanks For All the Fish, later adapted in the Quandary Phase for radio. I'll always be grateful that the majority of the original actors had the chance to come back for these plays - Stephen Moore and co. act the heck out of this scene: www.youtube.com/watch?time_continue=46&v=IC9TjMNqPEo&app=desktop