Marvel's M.O.D.O.K.
Beware What from Portal Comes!
S1 E3:
M.O.D.O.K brings Melissa and Lou along to a remote Grumbl leadership conference. After learning that he's not the guest of honor, M.O.D.O.K. enlists Melissa's help in manipulating the executives into respecting him. His schemes accidentally lead to him opening up a portal that brings the dangerously hedonistic alien species, the Ciegrimites, to the conference. While the aliens are initially the life of the party, executives begin to drop dead from partying too hard, leading M.O.D.O.K. and Melissa to wipe out the Ciegrimites and save the conference.