The comic Batman, by DC Comics, is mentioned several times in Buffy.

In Some Assembly Required, Buffy says to Willow, “Sorry to interrupt, Willow, but it’s the Bat-Signal.” She’s alluding to the ‘Bat-Signal’ in Gotham city which is used to alert Batman that he is needed.
In Halloween, Xander says to …

In the comic and movie Blade, Blade is a half-vampire who kills other vampires and has a mentor named Whistler - which was clearly the influence for the Angel/Whistler relationship.

In Bad Girls the Mayor, Mr. Trick and Deputy Mayor Alan Finch discussed their favourite comic strips. Finch liked Cathy, a cartoon which depicts the life of a young, single career woman.

The Jonathan comic books in Superstar were made by Dark Horse comics, the same company that makes the Buffy and Angel comics. In Supersymmetry, Gunn slams the comic shop clerk into a rack holding Dark Horse comics.

In Bad Girls, the Mayor says, “I just love the Family Circus! That P.J., he’s getting to be quite a handful.” Family Circus is a newspaper-syndicated cartoon by Bill Keane which has been running since the 1960s.

The Marvel comic Fantastic Four is referenced a few times in Buffy the Vampire Slayer and Angel. In The Witch, Xander says about Amber’s burning hands, “Like the Human Torch, only it hurts.” This is a reference to Johnny Storm, the Human Torch, a character in the Fantastic Four. In …

The scythe which Buffy finds in Touched comes from the Slayer comic book called Fray, created by Joss Whedon. In the comic, future slayer Fray is using the scythe to fend off vampires, so it gets passed down through generations after Buffy has it.

In Never Leave Me, Warren says to Andrew, “You can do this. You’re my Iron Fist.” Iron Fist is a Marvel Comics character.

The name of the episode Bewitched, Bothered and Bewildered may come from the Pogo comic books. The comics came out in the 1950’s and were created by Walt Kelly. Among the many characters of these comics were three bats (who wear top hats and trousers and do not resemble bats …

In Primeval, Joss Whedon got the idea of the Scoobies combining their powers to make a super-Slayer to defeat Adam from the Promethea series by Alan Moore.

Xander twice name checks “Sgt. Rock” in the episode Spiral. He is referring to DC Comics’ all-action war hero created by Robert Kanigher & Joe Kubert.

There is a Silver Surfer comic near Andrew at the beginning of the episode Storyteller. The Silver Surfer was a Marvel comic book character.

Spider-Man is a popular Marvel comic starring Peter Parker, who leads a double life as superhero Spider-Man. Made into two successful movies starring Tobey Maguire and Kirsten Dunst. There are many similarities between Peter and Buffy, as she too is trying to lead a normal life, and (occasionally) make a …

Comicbook hero Superman has been epitomised in many comics (by DC Comics), movies (starring the late Christopher Reeve), TV shows (eg. Lois and Clarke, Smallville), cartoons (eg. The Adventures of Superman) and even a musical. He and the world he lives in have been referenced many times in Buffy the …

In Reptile Boy, Tom says, “Anyway, the Hulk is gone, so you don’t have to dance with me.” This is a reference to Marvel Comics’ angry superhero the Incredible Hulk.