Abigail is based on Midas' daughter from the Greek myth, Midas.
Before First Curse
Abigail falls in love with a knight named Frederick and they become engaged. However, the lovers become forever separated when Frederick is accidentally turned to gold by her father King Midas' golden touch while protecting him from an attempted robbery. She tries everything, including true love's kiss, to break the curse on Frederick, with no success. ("What Happened to Frederick")
With little hope of bringing Frederick back, she reverts to an eligible status for marriage. King Midas strikes a deal with the neighboring kingdom of King George to reward him with gold if he can get rid of a terrorizing dragon. King George's faux son Prince Charming, masquerading as James, slays the beast. Greatly impressed, King Midas gives Abigail to Prince Charming as a bride. Abigail has little quarrel with the arrangement and goes along with it. Through the woods, the future couple ride in a coach together towards their engagement party at King Midas' castle. ("The Shepherd")
During the journey, Abigail is displeased by the bumpy carriage ride and openly complains about it to Prince Charming. They come to a halt when a fallen tree is blocking the road, so he goes out to assess the situation. Suddenly, Abigail hears a thumping noise from atop the carriage as if something just dropped down. A thief reaches into the carriage to steal Prince Charming's jewels and rides off. Abigail screams in fright, alerting her fiancé to the robber, and he chases after the bandit on horseback. ("Snow Falls")
During the journey, their carriage comes to a halt when a fallen tree is blocking the road, so Prince Charming goes out to assess the situation. While waiting in the carriage, Abigail is startled when he suddenly reappears soundlessly. Exasperated, she comments that he nearly gave her a heart attack. He informs her that the tree was purposely cut and that someone was likely planning to ambush them. Continuing on the ride to King Midas' castle, the carriage stops a short distance away as they arrive. Prince Charming is surprised by the exterior's gold encrusted walls, though Abigail says he'll stop noticing after a while. During the engagement party, her future husband asks if she'd like to dance. Abigail remarks that her shoes are too uncomfortable, so Prince Charming offers to fetch her another pair. She sarcastically calls him her hero and walks away with a look of disdain. Later, Abigail goes up to his room looking for him only to see the wanted thief Snow White escaping out the window. Shocked, she alerts the guards as the Evil Queen's soldiers begin searching for the bandit. ("Snow Drifts")
After the engagement party goes off without a hitch, she arrives in King George's kingdom for the actual wedding ceremony. Though King George hides the truth from her, she secretly knows that Prince Charming has run away. She has her father's soldiers capture Prince Charming while he is on the run, and gives him supplies for his journey. He is suspicious over why she is helping him, so Abigail admits that she, like him, is in love with someone else. Abigail takes him to see the golden statue of Frederick. She is desperate for a cure, and brings up rumors of the magic waters of Lake Nostos, which can restore something that was once lost. Prince Charming offers to fetch it for her, though she strongly opposes his sacrifice. She fears his valiant bravery will end in failure, and then both of them will be miserable. Instead, Prince Charming states that if he succeeds, her misery will be gone, and, if not, the misery will be his own in death. Abigail accompanies to the entrance of the lake, but he goes in alone. She anxiously waits for his return at the golden statue of Frederick. Finally, he returns with the magic water, which she pours over Frederick's head. The gold melts off and her beloved returns to human. As thanks for Prince Charming's selfless act, they provide him with provisions for his journey to find Snow White. However, Abigail warns him of King George's wrath before they part ways. ("What Happened to Frederick")
Threatened by the presence of the Wicked Witch of the West, Prince Charming and Snow White learn from a witch named Glinda that only the most powerful of light magic can defeat her. Realizing their daughter, Emma, fits the bill, Snow White casts another curse in order to whisk herself as well as everyone else back to Storybrooke. Before the curse spreads, however, the Wicked Witch interferes by adding a potion into the mixture to erase everyone's memories of the last year in the Enchanted Forest. ("A Curious Thing")
For the episode "What Happened to Frederick", Abigail's hat was made by Canadian-based fine headwear maker Kelly Dunlap, also known as The Saucy Milliner. On the hat, there is a center tail feather from a pheasant, which was secured with a brass finding on the side. Because of the feather not being actually sewn on the hat, it moves frequently as Abigail is walking or riding her horse. A duplicate hat was also made for Abigail's stunt double.