how quiet is too quiet???

Ive come into realization that those tv characters pink panther, and tom have never spoke. Like, yeah there are other characters in shows that don't speak but I'm more focused on these two. I used to love the pink panther but I never realized its so old. How did they make that tom cat have the ability to make sound when yelling but also made him act as if he couldn't talk. Unless he couldn't talk which makes even less sense. Was it that he only knew how to yell and couldn't form words together? But that couldn't be true because overtime the pitfall spoke he understood. I have no idea why I randomly thought about this during 4th period but its been bugging me for 4 minutes. I found this cute website-https://www.glitter-graphics.com/graphics/314846. Ok im done typing cause im getting right hand cramp.