The Amazon Prime ghost hunting series Truth Seekers drops this October 30, just in time for Halloween. It has quite a recognizable cast, featuring Shaun of the Dead comedy duo Nick Frost and Simon Pegg as its biggest draw. However, there’s another star whose name may be on the tip of your tongue: Malcolm McDowell, who plays Richard.

The series follows Gus (Frost), an internet installer who runs a paranormal YouTube channel on the side, and whose boss Dave is played by Pegg. Gus teams up with new employee Elton (Samson Kayo) and they do some ghostbusting around town with a little help from the recently traumatized Astrid (Emma D’Arcy). They frequently find ghosts caught in old technology, like a radar machine. McDowell plays Gus’s father-in-law, Richard, who lives with him.

McDowell has had a long career (that isn’t slowing down), with 271 acting credits on IMDb, but here are some of the films and series you might recognize him from….