The late Eugene Dynarski as Joseph Stalin in the Odyssey Theatre Ensemble in Los Angeles in 1987. This was the play that solidified Westwood Studios' choice to hire him in C&C: Red Alert.
Out of boredom, I've looked around to see if there's a photo of the late Eugene Dynarski as Joseph Stalin in the 1987 play, Master Class, which took place in the Odyssey Theatre Ensemble in Los Angeles. Lo and behold, I found it via Google and saw this Facebook reel with the man himself. I strongly believe Joe Kucan personally chose him to reprise his role as the dictator in Command and Conquer: Red Alert.
Additional information:
He won the Los Angeles Drama Critics Aware in 1987 for his role as Stalin: https://ladramacriticscircle.com/awards/1980-1989/
An April 20th, 1987 article from the Los Angeles time talking about Master Class: https://www.latimes.com/archives/la-xpm-1987-04-20-ca-1126-story.html
An article by Ernest Kearney at The TVolution website talking about the actor's background: https://thetvolution.com/2020/04/noted-actor-gene-dynarski-a-passing/