I was just watching Star Trek III The Search For Spock. I noticed that one of the Klingon's happened to be Christopher Lloyd. I wanted to confirm my self with the fact and so I continued to watch the credits. I noticed that it said that Frank Welker was responsible for doing the screams for Spock. I'm guessing their referring to the screams Spock made while he was rapidly aging on the Genesis planet. What other none-Transformers things did he do? Did he do any acting other than voice-acting? I think he also did KARR from Knight Rider as well. Or was that Peter Collen?