Agent Carter's Edwin Jarvis had his wife appear to get on famously, even though a Mrs. Jarvis has never been seen on screen.

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Howard Stark's (Dominic Cooper) butler is seen as being on very equal footing with his wife - we see him breaking stereotypical 1940's molds as he cleans dishes, whips up dinner - but the mysterious Anna has yet to make an appearance and fans are starting to wonder if she, too, has a high profile comic book identity.

"Marvel likes to keep you guessing, so I think they're creating space at some point for Anna," Hayley Atwell (Carter) informed HitFix. "They will want to define who she is and what the context is before they introduce her. So it gives them a bit more breathing space. It's far more interesting to have her as an enigmatic character, but also because of what we've discovered. We know he's a cook. He makes a soufflé and he watches Benny Goodman with her and he is a good husband."

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The only real clue Marvel has dished out about Anna's past involves Jarvis' (James d'Arcy) treason record. Desperate to rescue the woman he loved, a WWII Jarvis teamed up with Stark to get his wife safely out of Budapest. Now in the States, the butler's better half has become someone of an enigma.

Do you think Agent Carter will reveal more of Anna's history before season 1 is out? Sound off in the comments below.

Find out more when Agent Carter airs Tuesdays at 9 p.m. ET on ABC. Click the video below to see a sneak peek for the series' next episode, "Snafu."

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Agent Carter, Television, ABC, Marvel