Character guide
Bertram
Voiced by Wallace Shawn
Stewie met his future brother whilst trying to stop Lois conceive by entering Peter`s body in a tiny space craft. Despite initially trying to destroy his sperm brother, he soon learnt that they had much in common, including a desire to kill Lois.
User rating
Planet Family Guy users have rated Bertram 67.4 % (based on 105 votes).
Notes
Wallace Shawn, from the movie ``The Princess Bride``, provides the voice of Stewie`s sperm brother.
