Walter Koenig
Walter Marvin Koenig is an American actor, writer, teacher and director, known for his roles as Pavel Chekov in Star Trek and Alfred Bester in Babylon 5. He wrote the script for the 2008 science fiction legal thriller InAlienable.
Known for
Star Trek II: The Wrath of Khan 
Star Trek: The Motion Picture 
Star Trek 
Star Trek IV: The Voyage Home 
Star Trek: Generations 
Star Trek III: The Search for Spock 
Star Trek VI: The Undiscovered Country 
Star Trek V: The Final Frontier 
Trekkies 
For the Love of Spock 
The Captains 
To Be Takei 
Bone Eater 
The Questor Tapes 
Blue Dream 
Neil Stryker and the Tyrant of Time 
Pilot 
The Star Trek Saga: From One Generation to the Next