Saw writer Leigh Whannell has expanded his work in horror far beyond that franchise, working on the Insidious series and now writing and directing both Upgrade and The Invisible Man.

The infamous Billy The Puppet from the Saw films has cropped up in a number of other movies made by Whannell as well as James Wan who also worked on the films and now people are picking up on more references in Whannell's two movies mentioned above.

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Previously, Wan managed to sneak in a subtle reference to Annabelle in Aquaman which arrived in 2018.

According to Movieweb, Wan snuck the creepy doll into a scene near the beginning of the film for a very brief moment. They also asked him about the cameo but he skirted away from the question.

“I don’t know what you are referring to. [Laughs.] I have no idea what Easter Egg you are referencing here, if it’s an Easter egg… Maybe Patrick Wilson is really Ed Warren pretending to be King Orm? What can I say? I’d like to see that film, how about that?”

Death Sentence Bloody Disgustinggot the creepy puppet intoDead Silence as well as Insidious

Whannell has clearly taken inspiration from Wan in injecting Saw into his other films, too.

In both The Invisible Man and Upgrade Billy appears as a graffiti illustration which you can see below as captured by Reddit user MJZuurman.

Upgrade - Saw easter egg from r/saw

The Invisible Man - Saw easter egg from r/saw

Whannell and Wan both clearly have a massive appreciation for what they were able to put together with the Saw franchise.

While Upgrade has been out for a few years now, The Invisible Man was still in theatres when the coronavirus pandemic took over.

NBCUniversal are opting to release the film from theatres to streaming services as theatres across the globe are shutting down.

The Invisible Man along with The HuntEmma and soon enough Trolls World Tour are all being shifted away from theatrical releases.

Instead, they'll be on-demand releases for a 48-hour rental period at a $19.99 price point in the U.S. and equivalent prices in international markets.

Were you able to catch the Saw Easter eggs Leigh Whannell has snuck in while watching his films? Let us know in the comments below.

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