"The Clones" really stands out as having a truly science-fiction based storyline, that for it's time (1969), was just only being discussed in mainstream media because of real experiments that had been done on frogs (as mentioned in the episode).
I suspect writer Oliver Crawford deliberately focused on the character of Dan because actor Don Marshall turned in a superb performance in the the "Star Trek" episode "The Galileo Seven", which coincidentally Oliver Crawford had also written. The main cast (except for Heather Young) are excellent in their roles...particularly Deanna Lund and Stefan Arngrim who get to play 'bad guys' for a change as their evil duplicates.
Interesting how Dan's race becomes a major point in the story to determine who is and who isn't a clone. Nice dramatic points and certainly one of the earliest TV series to deal with the subject of cloning. SF shows prior to this used the term 'duplicates' as the scientific term of cloning had not yet been added to the American lexicon.
Guest star William Schallert turns in a fine performance as not necessarily and evil scientist but more as a determined man who doesn't see the flaws in his methods.
Guest props include the cryogenic tubes from "Lost in Space", and assorted IBM SAGE equipment left over from "The Time Tunnel" in the lab sequences.
I suspect writer Oliver Crawford deliberately focused on the character of Dan because actor Don Marshall turned in a superb performance in the the "Star Trek" episode "The Galileo Seven", which coincidentally Oliver Crawford had also written. The main cast (except for Heather Young) are excellent in their roles...particularly Deanna Lund and Stefan Arngrim who get to play 'bad guys' for a change as their evil duplicates.
Interesting how Dan's race becomes a major point in the story to determine who is and who isn't a clone. Nice dramatic points and certainly one of the earliest TV series to deal with the subject of cloning. SF shows prior to this used the term 'duplicates' as the scientific term of cloning had not yet been added to the American lexicon.
Guest star William Schallert turns in a fine performance as not necessarily and evil scientist but more as a determined man who doesn't see the flaws in his methods.
Guest props include the cryogenic tubes from "Lost in Space", and assorted IBM SAGE equipment left over from "The Time Tunnel" in the lab sequences.