I went on a few auditions for Broadway musicals, and never stopped taking classes, but I didn't take it seriously until I was out of college.
In voiceover, you have to restrain yourself when you're acting in the sound booth in front of the microphone. If you lean left or you lean right, you're going to lose the voice. Yet you yourself become animated when you're doing the part. So you'll see a lot of flailing arms, but a very still face.
