he was the first choice to play sheriff harry s. truman in david lynch's "twin peaks", but had to turn it down due to a prior commitment to a different television pilot, and was replaced by michael ontkean. he would go on to appear in lynch's "mulholland drive", a pilot for a tv series that was not picked up but was later turned into a critically acclaimed movie, and finally got to appear in "twin peaks", playing the brother of sheriff harry s. truman, sheriff frank truman, in "twin peaks: the return", when ontkean was not available to reprise his role. about this, forster said: "david lynch, what a good guy he is. he wanted to hire me for the original, 25 years ago, for a part, and i was committed to another guy for a pilot that never went. so i didn't do the original "twin peaks", which would have been a life-changer. it's a gigantic hit if you remember those years, a phenomenon. but i didn't do that. [...] and this time, i got a call from my agents and they said, david lynch is going to call you. when he called me five minutes later, he said, "i'd like you to come and work with me again." and i said, 'whatever it is david, here i come!'"