10 Star Trek Episodes That Never Got Made
2. Evil Chekov
According to actor Walter Koenig, the Next Generation team were keen to have Chekov make an appearance in the series. Following in the footsteps of McCoy, Scotty and Spock, Chekov would be the next Original Series character to come into contact with the crew of the Enterprise-D. The only issue which made it difficult for writers was how to achieve it successfully.
One story outline worked on by Story Editor Naren Shankar would revolve around the character being freed from a prisoner of war camp after decades. Chekov would work with the Enterprise crew to instigate diplomatic relations with his former captors. There would be a dark twist however, and it would transpire that Chekov was actually the villain of the week!
He would be revealed that he was using the situation to take revenge against his brutal captors and avenge himself against the Federation for abandoning him. The sabotage plot would be uncovered by Worf, the orphaned Klingon who had been raised by Russians and saw Chekov as a national hero. It's a compelling story idea, but the idea to bring back Koenig was eventually dropped by the production team.