First appearance of Angel (Warren Worthington III). In the comics, Angel was one of the original X-Men, along with Cyclops (Scott Summers), Marvel Girl (Jean Grey), Iceman (Bobby Drake), and Beast (Hank McCoy). This version appears to be an adult rather than a teenager and has never been a member of the X-Men.
Kitty (Shadowcat) is seen lighting a Menorah with her family. This, of course, is a reference to her Jewish heritage. In the comics, Kitty Pryde is also Jewish, though her level of devoutness varies depending on the writer.
The Daily Bugle appears, referencing Spider-Man
Kitty is shown lighting a Menorah in the ending montage, establishing that she is Jewish (episode 2.09 "On Angel's Wings").