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SDCC: John Barrowman Hosted the Eisners Dressed as Squirrel Girl, Harley Quinn

John Barrowman may be best known for his roles as Captain Jack Harkness and Malcolm Merlyn, but for one brief shining moment at Comic-Con International in San Diego, he was ... the Unbeatable Squirrel Girl.

And Harley Quinn. Oh, and Zapp Brannigan from "Futurama."

In short, the actor/singer/author was a quick-change artist Friday night as he hosted the 2016 Eisner Awards, shifting from costume to costume to costume.

As you can see from the photos below, Barrowman can rock a too-short military tunic or a bushy tail with equal ease.

Introducing Matt Groening in style @Comic_Con #EisnerAwards #SDCC #lovespanx #cosplay #jbstyle pic.twitter.com/Az21mOfOCi

- John Barrowman MBE (@Team_Barrowman) July 23, 2016

Yes Squirrel Girl happened @Comic_Con #SDCC #EisnerAwards #cosplay #jbstyle JB pic.twitter.com/mLb4s9FY1I

- John Barrowman MBE (@Team_Barrowman) July 23, 2016

.@Team_Barrowman's next number at the Eisner Awards? It's Harley Quinn of course, puddin'. pic.twitter.com/bY0DcGhvZQ

- Comic-Con HQ (@ComicConHQ) July 23, 2016

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