Blood Brothers/MU

The Blood Brothers is the name attributed to two fictional and otherwise unnamed comic book characters who appeared in titles published by Marvel Comics. They first appeared in Iron Man, Volume 1 #55 in February, 1973. The characters were created by writer Mike Friedrich and writer/artist Jim Starlin.

The Blood Brothers were two ape-like alien siblings who hailed from a world of unknown origin. They served as the minions of the galactic despot Thanos and were sent to Earth to safeguard one of Thanos' bases. The warrior known as Drax the Destroyer tracked the Blood Brothers back to Earth where he found them in battle with the armored superhero Iron Man. The Blood Brothers defeated Iron Man and were then teleported to Thanos' mountain retreat. Drax arrived as well and was captured by Thanos. When Iron Man revived, he freed Drax (with some help from the Titanian Mentor) and the two teamed up to fight the Blood Brothers, ultimately defeating them.