Hold thy tongue. Sir Quackerjack is my trusted new advisor.
5 seconds sound clip from Darkwing Duck - Quack of Ages (S1E51).
You can hear this line at 00:04:30.253 in the DVD version of the TV Series.
Quote context
[...]
- Ooh, but none may see the king. His new minister will not allow it.
- He'll see me. I'm Darkwing Duck. I demand to see the king.
- Sire, this man is a fraud, a fiend and a known felon.
- Hold thy tongue. Sir Quackerjack is my trusted new advisor.
- The sire and I are great pals.
- This guy cracks me up. No lie.
[...]