Guardians of the Galaxy Vol. 2 was full of easter eggs, cameos, connections, and surprises. One of the final character reveals was so brief and quick (yet could be very important for the future of MCU) that it went over the head of all the viewers. Luckily for them, we are here to explain.
During multiple End Credits scenes for Guardians of the Galaxy Vol. 2, we get another look at Sylvester Stallone’s Stakar Ogord and his inner circle of Ravagers.
Those elder Ravagers are, in fact, the Marvel Cinematic Universe version of the original Guardians of the Galaxy comic book team (from the ’70s); along with them, we get appearances from other obscure Guardians comic book characters – and one of the final characters we meet is “Krugarr”
Krugarr is a Lem, a race of extremely long-lived wormlike creatures. It is unknown exactly how old Krugarr is. Sometime in the 22nd century,” Doctor Stephen Strange” found him on Lem. Krugarr agreed to become his apprentice and learn the ways of magic.
Krugarr succeeded Strange as Sorcerer Supreme, with Strange now calling himself the Ancient One like his own master was previously. Krugarr accepted the Inhuman Talon as his apprentice, but Talon was rejected after not taking his training seriously.
Krugarr battled Strange’s ancient foe Dormammu. He and Talon seemed to reconcile and Talon resumed his studies on Lem. Krugarr can use a great many magical spells such as mystic bolts, flight, astral projection, and calling upon various entities and is highly intelligent.
In the MCU, Krugarr is a CGI alien who doesn’t yet have a voice actor but clearly displayed mystical ability in his brief post-credits scene cameo, as he moves his hands and generates the sort of visual effects for spell-casting that we saw in the Doctor Strange movie. 
So, this possibly means that he will appear in future MCU movies alongside Doctor Strange. This mystery will be solved in the future.
