Maisie – who plays Arya Stark in the HBO fantasy epic – looked sensational in a blush pink dress that featured a dramatic V-neckline.
The 19-year-old actress flaunted major cleavage in the silky floor-length gown as she walked the red carpet at the event in Los Angeles.
The backless design added a touch of sex appeal to the otherwise demure dress.
Her dark lips added a touch of boldness to her outfit as she teamed it with an exquisite squared clutch bag.
Maisie Williams stunned in a blush pink gown as she lead the way at the SAG Awards
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The 19-year-old actress who plays Arya Stark in Game of Thrones wore a backless pink gown
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Meanwhile, Sophie, 20, wowed in a red figure-hugging frock which highlighted her svelte figure.
The star, who plays Maisie’s on-screen sister Sansa in Game Of Thrones, brought the Hollywood Glamour as she made her way into the event.
She would have no doubt turned heads in the bold gown that featured a thigh-high split showing off her lengthy pins.
Her blonde dyed locks were styled in tousled waves as she matched the outfit with a bright red lipstick and silver high heels.
Gwendoline Christie who stars as Brienne of Tarth in the fantasy series also looked incredible in a glitzy dress as she towered over petite Maisie.
The Game of Thrones actress would have turned heads in the figure-hugging gown at the SAG Awards
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Maisie Williams and Gwendoline Christie looked incredible at the event in Los Angeles
The cast are at the awards ceremony to represent their show as it hopes to scoop the award for Outstanding Performance by an Ensemble in a Drama Series.
Anticipation has ben building ahead of the new series set to air this Spring with many spoilers and behind-the-scenes pictures being leaked online.
But Maisie has now hit out at those who have leaked the series and called them “childish and annoying”.
Elsewhere at the SAG Awards, The Crown’s Claire Foy and Matt Smith copied up on the red carpet.
The pair, who play Queen Elizabeth and Prince Philip in the Netflix series, looked extremely happy to be reunited at the star-studded event.