Darrin the Bold

 was an Irish ancestor of Darrin Stephens.

In the fifteenth century, he killed Rufus the Red. In retaliation, a wood nymph, Gerry O'Toole (who was Rufus the Red's true love), placed a curse on Darrin the Bold and all of his descendants. The curse was lifted after Samantha time-traveled into the past to undo the deed. Serena traveled back in time to give him a potion that turned him, and thus Darrin, into a warlock.