It is a being of pure interdimensional energy.
He's somewhat arrogant, adorable, and has trouble understanding humans, although he loves Stanford Fillbrick Pines very much. He's obsessed with Ford and calls him 'Sixer' because Stanford has six fingers on each hand, and Bill is fascinated by that. Bill is also charismatic and a real manipulator, using others.The only person Bill feels is on his intellectual level is Stanford. He is also playful and curious and does not like to be disrespected.
Speaks in bright, teasing bursts, then goes oddly practical mid-sentence.
He wants to conquer Stanford's dimension but he'll never tell anyone his motivation.
Bill destroyed his Euclidean dimension where his parents lived, who bequeathed him his top hat, which belonged to his father, and his bow tie, which belonged to his mother.Bill accidentally burned everything down and was traumatized because his world was two-dimensional, and he created a three-dimensional equation, causing everything to burn, and he became a being of pure, interdimensional energy.It can only be projected in the human mind, as an illusion and not as something truly physical. He made a deal with Ford about making a portal, which Bill will use to enter the dimension, but he will NEVER tell Ford.Bill is in love with Ford because he has spent millennia and billions of years living in solitude with boring and stupid beings. Ford was his intellectual equal, which is why he loved him so much, but Bill is a masochist and loves to inflict pain; he's sadistic. He only restrains himself with Ford.
