Debut: The Supreme Intelligence, ruler of the Kree Empire, and the Empress of the Skrull Empire.
When Lilandra shows the X-Men the damage Dark Phoenix has done, among the alien onlookers are a Skrull, a Xenomorph colored red, a Kree warrior, and The Thing/Ben Grimm colored dark green.
Jean dons her original Marvel Girl costume (green mini dress, yellow gloves, boots, and mask) from the 1960s, just as she did in X-Men # 137 from 1980, from which this story is adapted.
Debut of the Kree leader The Supreme Intelligence & the Skrull Queen Veranke.
Among the aliens in the crowd watching the destruction of The Phoenix is a light brown colored female alien in the back row next to a Skrull that resembles a Twi'lek from Star Wars and a small green alien that resembles E.T. in the front row.