From the Main menu select "options" then "Codes" Enter codes one at a time, after each entry the game saves and you back out and enter a new code.

Effect	Code
Ammand the Corsair	ew8t6t
Angelica (disguised)	dlrr45
Angry Cannibal	vgf32c
Blackbeard	d3dw0d
Clanker	zm37gt
Clubba	644thf
Davy Jones	4djlkr
Governor Weatherby Swann	ld9454
Gunner	y611wb
Hungry Cannibal	64bnhg
Jack Sparrow	vdjspw
Jacoby	bwo656
Jimmy Legs	13glw5
King George	rked43
Koehler	rt093g
Mistress Ching	gdetde
Phillip	wev040
Quartermaster	rx58hu
The Spaniard	p861jo
Twigg	kdlfkd