Emmy Rossum Marries 'Mr. Robot' Creator Sam Esmail — See Her Stunning Dress

Shameless star Emmy Rossum and director Sam Esmail have tied the knot!

After getting engaged in August 2015, the couple made it official in an intimate ceremony at Central Synagogue on East 55th Street in New York City on Sunday.

Guests included Robert Downey Jr., Shameless co-stars William H. Macy and Shanola Hampton, Mr. Robot stars Rami Malek, Christian Slater and Carly Chaikin, and Hilary Swank.

Around 7 p.m., the beaming newlyweds were the first to emerge from the synagogue, stepping out hand in hand and walking down steps decorated with white roses, as a small crowd of well-wishers gathered outside and cheered.

Afterward, the bride, groom and about a hundred guests headed to the Guggenheim Museum on the Upper East Side for a lavish wedding reception.

Rossum wore a custom off-the-shoulder Carolina Herrera gown and a long white veil, while Esmail wore a black suit.

Rossum worked closely with Herrera and her team to create the look, which was partly inspired by the architectural shapes of the Guggenheim museum, the site of their reception.

"I went in, and Mrs. Herrera and I talked about silhouettes she'd done for bridal and silhouettes I'd worn before," Rossum told Vogue. "I knew I'd be getting married at the temple, which is quite grand, and that the reception would be at the Guggenheim, so we knew that it needed to be a dress that could hold up to that. And it was Mrs. Herrera's idea to make it quite modern and fresh, and kind of use the shape of the Guggenheim on the bodice."

Natural makeup by makeup artist Jo Baker and a sweeping updo by hairstylist Ryan Trygstad — a suggestion from Ms. Herrera — completed her bridal look. She accessorized her beauty look by pinning in a Fred Leighton headpiece on top of her matching Carolina Herrera cathedral veil.

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Rossum decided this was her one and only look for the evening as well, deciding against the newly-popular tradition of the bride changing into a party look. "It's the one time that you get to wear it," she told Vogue. "I think it would be different if I'd had a formal ceremony and then I'd been on a beach. But I was happy wearing this dress until the wee hours of the morning."

On Friday, the couple was spotted looking loved-up at a dinner in N.Y.C. Rossum wore a stunning red cocktail dress for the night out with friends and family.

Esmail, 39, proposed to Rossum, 30, after two years of dating, and he directed his bride in the 2014 romantic dramedy Comet, which also starred Justin Long.

The actress told PeopleStyle in 2015 that her engagement to the Mr. Robot creator has been focused on sentimental details — including the story behind her ring.

Her engagement ring is a classic round-cut diamond and platinum ring from the Art Deco Era. It was made in France, circa the 1920s, and came from jeweler Neil Lane's archival collection of historical rings.

"I like that it's old and I like to imagine who wore it before me and the life that they had," she told PeopleStyle. "I don't know the story behind it, but it's from 1920 in Paris, so I like that I've inherited someone's story, and I hope that it's a good one."

In February, she revealed at the Carolina Herrera show during New York Fashion Week that the designer (who she's turned too for many red carpet events including this year's Met Gala) would be creating her wedding dress.

"We haven't done any [fittings]," Rossum told E! at the show. "We don't even know yet. We're no where."

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The star put full trust in Herrera, and was not nervous about the dress process at all. "She's got it," Rossum said. "There's no rush. She can turn it around in a day. I'm not concerned."

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Rossum's anti-bridezilla approach echoed across all of her wedding planning.

"I don't really care what the dress looks like. I don't really care what the plates look like. I don't really care what the invitation looks like," she said. "The only thing that's really important to me is that we get married and there's some kind of party."

But the main reason she didn't stress over her dress? She's used to going black tie. "Weirdly, I feel like so many times in my life are about dressing up for a film premiere or a fashion show so this is the one time in my life where I'm actually not that focused on details," she said.