Scoundrel

Scoundrel is a perk in Fallout 3 and Fallout 2d20.

Fallout 3
Use wily charm to influence people - each rank raises your Speech and Barter skills by 5 points.

Fallout 2d20
When making a Charisma + Speech test to convince someone of a lie, may ignore the first complication rolled.

Additional dialogue
This perk unlocks unique dialogue options with certain characters.
 * During Blood Ties, the player can extort 100 caps out of Lucy West after discovering the fate of her parents in Arefu.
 * During the same quest, the player can get the password to unlock the area where Ian West is located from Holly.