Jack the Ripper is one of the ghosts haunting the Haunted Mansion.
Jack the Ripper is the ghost of a famous serial killer who roamed London in the late 19th century where he killed at least five woman. Despite his fame his identity was never revealed and he was never caught. His portrait portrays him as an obese moustached man with green eyes, and high society menswear. He stands in a dark alley at night in front of a lamppost as he brandishes a knife.
Much like the other Sinister 11 portraits Jack's portrait features the "staring-eyes" effect which was accomplished by painting pupils on ping-pong balls cut in half. The eyes were cut out and the balls were set behind the portrait and lit, giving guests the impression that they are moving.