*Mary-Beth Gaskill is a supporting character featured in Red Dead Redemption 2.

At some point prior to 1899, Mary-Beth got into trouble when she stole watches and wallets from several men. She was found by the Van der Linde gang while being chased by her pickpocketing victims, and was presumably rescued by them before joining the gang.

Mary-Beth presents herself as a kind and good-natured woman, and while this is certainly true she is also a competent thief and scam artist. Within the gang she is genuinely loving and considers most of them family. Mary-Beth is a devout bookworm, almost always seen reading a romance novel at camp, and even becomes a writer herself in the epilogue, albeit a very self-deprecating one. She's insecure about her passion and always gets shy and bashful whenever someone asks about it, calling her own books "silly".

Mary-Beth is considered the kindest and most gentle member of the Van der Linde gang. This is seen during many moments throughout the story, such as when Mary-Beth would often offer to speak with Arthur about recent events and offer him comfort on his inevitable death by his illness. Her kindness also extends towards strangers and possibly threatening figures, as seen during random events in the camp, Mary-Beth gives Kieran a cup of water while the latter remains tied up in a post after witnessing Karen taunting and mocking him. She and Kieran eventually become very close, and Mary-Beth is devastated over his death. Like most of the other women in the gang, Mary-Beth does have a soft spot for young Jack Marston, which is shown when he is safely returned from Angelo Bronte.

Mary-Beth is a young, freckled woman, with green eyes. She has brown hair which she wears in a Gibson tuck secured with a decorated hair-clip. She also has curled hair-pieces pulled over both shoulders or down one shoulder depending on the outfit she's wearing. In Chapter 2, Mary-Beth wears either a purple blouse with a white collar worn with a dark green shawl, or a green checkered shirt; which she wears together with a maroon skirt with two white stripes at the end.

Later on, she will be seen wearing her usual maroon skirt but with a sleeveless floral blouse and a turquoise festoon necklace. She can also be seen wearing the same skirt but with a red jacket, her necklace with the addition of a matching turquoise bracelet. Similarly, she can be seen in a jacket and skirt outfit, but they will be recolored to be brown and yellow, respectively; but will still include her matching turquoise accessories. She wears black lace-up boots with all her outfits.

While in Colter, Mary-Beth wears her dark-green shawl tied over her head, a black coat, grey gloves, a black belt with a gold and turquoise buckle worn over the coat, and a maroon skirt with her black boots.*