This episode features an appearance by Angela (Thor's sister). Angela in the comics was a well known member of the guardians of the galaxy when she joined in 2013. Angela however was not originally a marvel comics character but actually originated in the pages of spawn.
Star-Lord calls Thor a "neo maxi zoom dweebie" which is a reference to the film the breakfast club in which John Bender (Judd Nelson's character) says the same the insult.