The Bogdanoffs are identical twin brothers best known for producing the science fiction television series Temps X and their involvement in a theoretical physics dispute. On 4chan, the brothers are associated with a list of grandiose conspiracy theories known as the "Bogpill."

On December 28th, French media reported that Grichka Bogdanoff died aged 72. On January 3rd, six days after Grichka's death was reported, Igor Bogdanoff died.