Pause the game, click extras, then click enter the code.

Effect	Password
Alfrid	FAVZTR
Azog	84ZZSI
Bain	W5Z6AC
Barliman Butterbur	XTVM8C
Barrow Wight	555R9C
Beorn	KEID2V
Bolg	ZIBYHO
Braga	MXUXKO
Elros	H2CAID
Fimbul	THAVRM
Galadriel	00TE7J
Gollum	3CE37P
Grinnah	TPD7YW
Lindir	V4Y5HZ
Master of Laketown	9NOK35
Narzug	4FYKKB
Necromancer	NM3I2O
Percy	74KN31
Peter Jackson!	5OJEUC
Rosie Cotton	TB4S6J
Sauron	OARA3D
Thror	SYKSXF
Tom Bombadil	4Y95TJ
Witchking	V8AHMJ
Yazneg	S6VV33