@complex: Walter Koenig, best known for playing Chekov in the original “Star Trek” series, has d*ed at 90. His rep told TMZ that he d*ed Sunday at his North Hollywood home with his daughter and niece by his side. Koenig returned as Chekov in several “Star Trek” films and also appeared in “Babylon 5,” “Columbo” and “Futurama.” 📸: Getty