That was one of the reasons I hated the Cartoon. Cobra Commander was reduced to a whiny spineless idiot. Destro sounded more like James Earl Jones than a Scottish
arms dealer. The only Voice I thought was fitting for the Cobra's was Zartans, with that strange echo.

I see Cobra Commander having a voice that is normal, but with a slow, deliberate tone. I could see the guy who played Dr. Doom on fantastic Four playing his voice.

Destro should DEFINITELY be voiced by Sean Connery or someone with that profound Scottish accent.

But, yes, when I'm thinking of Cobra Commander, I ALWAYS hear THAT voice in my head! And sometimes it makes me wanna pull my hair out.