who are the characters?
Professor Robert Crater, his wife Nancy, Captain Kirk, Chief Medical Officer Dr. Leonard McCoy, and Crewman Darnell
Plot
The USS "Enterprise" arrives at planet M-113 to provide supplies and medical exams for the only known inhabitants of the planet, Professor Robert Crater (Alfred Ryder) and his wife Nancy (Jeanne Bal), who operate an archaeological research station there. Captain Kirk, Chief Medical Officer Dr. Leonard McCoy, and Crewman Darnell (Michael Zaslow) transport to the surface 
what is the man trap? The first episode of of the American science fiction television series
Professor Robert Carter, Nancy, Captain Kirk, Dr. Leonard McCoy, Darnell, Spock, Green, Sturgeon and others. Professor Robert Crater, Nancy, Captain Kirk Professor Robert Crater, Nancy, Captain Kirk, Dr. Leonard McCoy, and Crewman Darnell.
The Man Trap The Man Trap The Man Trap
Plot Plot Plot
 Professor Robert Crater (Alfred Ryder) and his wife Nancy (Jeanne Bal), who operate an archaeological research station there. Captain Kirk, Chief Medical Officer Dr. Leonard McCoy, and Crewman Darnell (Michael Zaslow) transport to the surface as Kirk teases McCoy about his affection for Nancy ten years earlier. They arrive in the research station, and each of the three men sees Nancy differently: McCoy as she was when he first met her, Kirk as she should look accounting for her age, and Darnell as an attractive blonde woman whom he met on a pleasure planet. When Nancy goes out to fetch her husband, she beckons Darnell to follow her. Professor Robert Crater (Alfred Ryder) and his wife Nancy (Jeanne Bal), who operate an archaeological research station there. Captain Kirk, Chief Medical Officer Dr. Leonard McCoy,  The USS "Enterprise" arrives at planet M-113 to provide supplies and medical exams for the only known inhabitants of the planet, Professor Robert Crater (Alfred Ryder) and his wife Nancy (Jeanne Bal), who operate an archaeological research station there. Captain Kirk, Chief Medical Officer Dr. Leonard McCoy, and Crewman Darnell (Michael Zaslow) transport to the surface as Kirk teases McCoy about his affection for Nancy ten years earlier. They arrive in the research station, and each of the three men sees Nancy differently: McCoy as she was when he first met her, Kirk as she should look accounting for her age, and Darnell as an attractive blonde woman whom he met on a pleasure planet. When Nancy goes out to fetch her husband, she beckons Darnell to follow her.

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The Man Trap [SEP] Plot
The USS "Enterprise" arrives at planet M-113 to provide supplies and medical exams for the only known inhabitants of the planet, Professor Robert Crater (Alfred Ryder) and his wife Nancy (Jeanne Bal), who operate an archaeological research station there. Captain Kirk, Chief Medical Officer Dr. Leonard McCoy, and Crewman Darnell (Michael Zaslow) transport to the surface as Kirk teases McCoy about his affection for Nancy ten years earlier. They arrive in the research station, and each of the three men sees Nancy differently: McCoy as she was when he first met her, Kirk as she should look accounting for her age, and Darnell as an attractive blonde woman whom he met on a pleasure planet.