Darla -

If you mean the centuries-old vampire played by Julie Benz in the Joss Whedon universe:

Alfalfa's sweet, sassy, and fiercely independent love interest. If you mean the centuries-old vampire played by

The sire and former lover of Angel, masterfully navigating a complex redemption and tragedy arc. If you mean the centuries-old vampire played by

If you are referring to the classic character from the 1994 live-action remake of The Little Rascals : If you mean the centuries-old vampire played by