Hibbert and was deemed evil.
Simpsons barts twin in attic.
Hugo was deemed too evil for human society so they chained him in the attic where they feed him on fish heads.
They investigate and discover that there is a monster.
Hugo simpson hugo is bart s conjoined twin from the treehouse of horror vii segment the thing and i.
However later when bart and lisa and maggie get up there they see it just escaping from the chains.
He explains that bart has an evil twin named hugo.
The two were separated at birth but it was discovered that hugo was too evil to live in society so the simpsons kept him chained in the attic where homer fed him a bucket of fish heads once a week.
The two were originally conjoined but were separated at birth.
Hibbert then reveals that there was an irregularity when he was born and one of the twins was pure evil.
He explains that bart has a twin brother named hugo.
Shortly after their birth they were separated by dr.
Homer and marge realize that the creature has escaped prompting marge to call dr.
Simpsons bart s evil twin.
However one night after bart and lisa get suspicious bart is lying in bed and something in the vents is looking at him obviously the twin.
Since then he has yet to make another appearance.
Marge and homer then locked hugo in the attic and fed him a bucket of fish heads once a week.
In the thing and i bart hears something in the attic one night and his parents tell him that it s his conjoined twin brother hugo.
In on of the simpsons halloween specials bart s evil twin lives in the attic.
To hide the secret marge and homer chained hugo in the attic and fed him fish heads once a week.
Hugo simpson ii born april 1 1979 is a non canon character and bart s conjoined twin in treehouse of horror vii.