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Mr. Albert Einstein, or just Einstein, also nicknamed Al or the Einster, is a computer programmer who appears in The Super Mario Bros. Super Show! episode "9001: A Mario Odyssey". He is a parody of Albert Einstein.
Einstein is a brilliant man, as he managed to invent the HAL 9001 computer and pizza machine for Mario and Luigi. Although he is confident that the HAL 9001 is near-perfect, he is unable to predict the dire consequences that arise when he leaves the computers with the Mario Bros.
It is only when Einstein returns to Mario Brothers Plumbing that he discovers that HAL has malfunctioned, and is attempting to hypnotize the two plumbers. Einstein quickly unplugs all of HAL's cords, shutting the computer off and freeing Mario and Luigi.
Einstein tries to apologize for everything that HAL has done, including the horrible pizzas (i.e. popcorn pizza) that have been prepared. Mario couldn't care less, as he intends on eating the bizarre pizzas anyway.