22 Whedonverse Easter Eggs You Might Have Missed

A figure of Han Solo frozen in carbonite appears routinely throughout the series, often positioned around the dining room on the titular ship. Make a drinking game out of it.

A cannibalistic Reaver appears in the monster purge toward the film's end, happening in a blink.Fireflyis briefly visible.

In "Graduation Day 2," Buffy dreams Faith sings the line "Miles to go/Little Miss Muffet/Counting down from 7-3-0." Buffy dies two years (730 days) later at the end of season five.

During Thor's strange dream sequence inAvengers: Age of Ultron, the Wolfram & Hart law firm fromAngelmakes a special appearance as three figures wearing wolf, ram, and heart masks.

The name of the evil corporation inDollhouseis a direct reference toKarel Čapek's influential 1920sci-fi stage playR.U.RorRossum's Universal Robots.

At many points in the show, a "WY" logo appears on firing screens and during a flashback to the Serenity Valley battle, Mal uses a weapon made byWeyland-Yutani. This is the corporation that employs Ripley inAlienand its sequels.

After playing the theme song toBuffy the Vampire SlayerNerf Herder finally appeared on the show in the seventh season with little fanfare.

A design model for the Serenity ship pops up on a screen in a blink during The Avengers.The Avengers.

For shout outs to classic horror, look at the dry erase board from TheCabin in the Woodsit features everything from Deadites (fromEvil Dead) to witches andsexy witches. Listing every monster on this board would fill the entire list..

In thecomic book seriescontinuing Buffy through an eighth season that never aired on TV, a London panel shows The Doctor and Rose, played by David Tennant and Billie Piper, onDoctor Who.

InThe Cabin in the Woods, we see a quick shot of a woman shooting herself. This looks familiar because a similar scene occurs when a recording played by Sarah Paulson kills herself inSerenity.

On the commentary forAvengers: Age of Ultron, Whedon described a shot of Captain America as a direct homage to a shot of John Wayne fromThe Searchers, both showing an old-fashioned man of war separate from his more civilized peers.

InSerenity, fans may see that a brief look at Mal's scars shows each one stems from wounds gotten duringFirefly's initial run.

Everyone knows the two main Hellmouths are in Sunnydale and Cleveland, but in the Season sevenBuffy episode "Never Leave Me," fans learn where else they might find a Hellmouth. Call your travel agent!

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In Serenity, when Jayne checks a mummified body in the White City, the code "C57D" appears on a car. This is the same serial number.This is the serial number of the saucer ship in Forbidden Planet.

Whedon admitted these characters are stand-ins for himself and Drew Goddard, the movie's director and co-writer.

In International Maritime Flag Symbology, "W" or "Whiskey" means "I require medical assistance." This explains why Amy Acker's character on Dollhouse Whiskey is a nurse named Whiskey.

Marty says "We're not who we are," in this scene.The X-Filesseason one episode "Ice."

At the end of season one Buffy episode "Out of Mind, Out of Sight," a girl who can turn invisible goes to a special school. On her first day, she opens her book to lyrics for "Happiness is a Warm Gun," but changes the line to "Joy is a Hot Revolver."

The cabin film is basically the cabin from Evil Dead.

In Cabin in the Woods, there is a monster looking very much like Pinhead from Hellraiser. He is credited as "Fornicus, Lord of Bondage and Pain."