The Bi-Beast first appeared in The Incredible Hulk vol. 2 #169 (November 1973) and was created by Herb Trimpe and Steve Englehart, who described it as "just another idea for something powerful/impressive enough to fight the Hulk."[2]
The Bi-Beast is a two-headed android created by an avian subspecies of the Inhumans.[3][4][5][6] After the species dies under unknown circumstances, the Bi-Beast is left alone in their city. Years later, the creature kidnaps the Harpy and Bruce Banner so they can fix the city's decaying machinery. However, Banner chooses to cure the Harpy instead.[7] When MODOK attacks the city, the Bi-Beast activates a self-destruct mechanism and is killed in the explosion.[8]
The Bi-Beast is a highly advanced android who rivals the Hulk in terms of physical prowess. Additionally, he possesses an extensive knowledge of Avian warfare, culture and science.[19][20][21]
Bi-Beast makes non-speaking appearances in The Avengers: Earth's Mightiest Heroes.[22] This version was originally imprisoned in the Cube until a technological fault enables him to escape in the pilot episode "Breakout".
Bi-Beast was one of several supervillains referenced in The Supervillain Book: The Evil Side of Comics and Hollywood book.[24][25] Additionally, he was ranked as the tenth greatest Hulk villain by ComicsAlliance, and included in various rankings of characters related to the Hulk.[26][27][28][29][3][4][6]
^ ab"Bi-Beast Voices (Hulk)". Behind the Voice Actors. Retrieved December 13, 2019. A green check mark indicates that a role has been confirmed using a screenshot (or collage of screenshots) of a title's list of voice actors and their respective characters found in its credits or other reliable sources of information.{{cite web}}: CS1 maint: postscript (link)