The inimitable Peter Sellers as Inspector Jacques Clouseau.
So very many to choose from.
A selected list:
"Madame, that is by far the ugliest nose I have ever seen and I compliment you on it, it suits you!"
"That is why I have failed where others have succeeded."
"Swine Parrot! That is my own personal mustache!"
"Was it hard in the resistance? Yes, but not as hard as it is now."
and, "Cato, I very much suspect that the Hornet is overdue for a service."