Don't recognize Ratzenberger? He delivered the line, "Your Highness, there's nothing more we can do tonight. The shield doors must be closed," to Leia in "The Empire Strikes Back."
Though he's not named in the movie, the credits identify him as Major Derlin. When Calabrese asked Ratzenberger to say the lines back to him, the actor appeared confused.
"I don't even think he remembers being Major Derlin," Calabrese says.
Ratzenberger's voice, however, is far more famous. He's voiced a character in every Pixar movie, including Hamm in "Toy Story," Mack in "Cars," and a crab in "Finding Dory."