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Amanda "Mandy" Elizabeth[1] McAllister is a 30-year-old woman Georgie met at Meemaw's Laundromat/Gambling Room in Season 5. She would later marry Georgie in season 7.

Quick Answers

What happened when Amanda McAllister went to Meemaw's house? toggle section
Amanda McAllister was confronted by Missy Cooper and Sheldon, who suspected she might be a burglar. They talked and revealed that Meemaw was in jail.
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Why did Amanda McAllister go to Georgie's garage to stay? toggle section
Amanda McAllister didn't pay rent and the landlord put a padlock on her door. She asked Georgie to help her get her items and decided to stay at his garage.
Provided by: Fandom
What did Sheldon call Amanda McAllister? toggle section
Sheldon called Amanda McAllister 'niblingo', a term he created to describe a woman who's carrying his future niece or nephew but is not related to him by law.
Provided by: Fandom
What did Amanda McAllister advise on? toggle section
Amanda McAllister advised on dealing with a boy problem at school.
Provided by: Fandom


Season 1

Mandy is first mentioned when Georgie makes a bet at 1000 dollars with George that he's not gonna get married before he's 25, Adult Sheldon mentions that Georgie married his first wife (Mandy) at 19 he never paid his father off. (A Computer, a Plastic Pony, and a Case of Beer)

Season 5

She moved from Houston to attend college at Texas A&M in San Antonio. Then she got an internship nearby and eventually a job at a news station, where she dated the station manager. When he broke up with her, he fired her, forcing her to move back to Medford. She meets Georgie who helps her out and starts talking, eventually dating. (A Lock-In, a Weather Girl and a Disgusting Habit)

Mandy begins a relationship with 17-year-old Georgie who lies saying he is 21 while she also lies saying she is 25. Later in the evening she feels too guilty and comes clean to Georgie and tells him her actual age, 29. (A Lobster, an Armadillo and a Way Bigger Number)

She moved into her studio with the aid of Georgie and sleeps with him as a result. He tells her the truth about his age at 17 and she tells him to leave the studio. Later she comes storming into the laundromat screaming at a very hungover Meemaw about how why she didn't tell her that Georgie was 17. After shooting down Meemaw's attempt to bond over men being the worst she slams the lid of a washing machine and wishes Meemaw good luck with her hangover before storming out again. Georgie comes back to her apartment and she tells him that she is pregnant. (A Solo Peanut, a Social Butterfly and the Truth)

Mandy talks to Georgie about her pregnancy. She shows him two positive pregnancy tests and they both freak out. She says she has never been knocked up by a 17-year-old; she is not reassured that he will be 18 in March. Later, Georgie goes back to talk to Mandy in her studio and asks if the baby is his. She did not like the question and shuts the door in his face. (Babies, Lies and a Resplendent Cannoli)

Mandy meets George's Family

Mandy's first dinner with the Cooper family.

Meemaw goes to talk to Mandy about everything. She says she hasn't told her parents yet, but Meemaw lets her know that she has her back. When Mandy is at dinner with the Coopers, they start with grace. Mary encourages Georgie and Mandy to get married and raise their child as a baptist. Mandy still refuses to marry Georgie and points out that her dad will probably shoot Georgie with a firearm if he ever found out. When Mandy leaves and is on the porch, Georgie talks to her and wants to kiss her goodnight but is refused. Meemaw comes out and talks to her, and explains that since Mary and George argued in front of her, she's already part of the family; Mandy appreciated Meemaw's honesty and commitment; although everything is awkward and strained. The next day Georgie visits Mandy at her job at a restaurant and attempts to tell her how he really wants to be there for her, he also tells her he loves her. Her only response is annoyance of him following her around while she is trying to work. (A God-Fearin' Baptist and a Hot Trophy Husband)

Georgie with Mandy

Mandy and Georgie at the baby doctor.

Mandy comes to Meemaw's house to ask for her advice. Later they went to the baby doctor but Georgie was following them. Meemaw is mad but Mandy lets him stay. (White Trash, Holy Rollers and Punching People)

Season 6

Later on, she goes to Meemaws house wanting to talk to her. She is confronted by Missy Cooper and Sheldon, who suspects she might be burglar after having seen her loitering on Meemaw's porch. They talk and reveal Meemaw is in jail. She and Missy sit, and bond, and Mary comes to greet them. She leaves as a result. (Four Hundred Cartons of Undeclared Cigarettes and a Niblingo)

Mandy didn't pay rent and the landlord puts a padlock on her door with the condition that full payment is expected. She tells George that pregnancy is affecting her job performance. The tips get smaller and are unable to pay the electricity bill, forcing her to use candles. As a result, she goes to Georgie at his garage to stay. She asks Georgie to help get her items and he does so. As they do the clothes, she tells him that she will only sleep together, not have sex at all. She then tries to go into the house to go to the bathroom but is repulsed by the house of George and Mary having sexual activity, so she goes back to use the sink. The next morning, she meets Sheldon and Missy at the kitchen table, while Georgie says he'll make toast. Sheldon calls her “niblingo” a term he created to describe a woman who's carrying his future niece or nephew but is not related to him by law. She thinks she will get along with the family (Passion's Harvest and a Sheldocracy).

Mandy is over at the house and gets served food by Meemaw. Later on, she advises on dealing with a boy problem at school. Later, on a lunch date, Mandy and Missy bond and tell her about blonde hair and Madonna being a brunette. In the end, Mandy sees Missy's attempt at blonde hair and is horrified. (Blonde Ambition and the Concept of Zero)

Mandy is working at the Blue Bell again when Georgie asks her how she is doing. Later that night, Mandy and Georgie are at Meemaw's house watching Look Who's Talking when Missy comes in. Her baby bump is now obvious, and the pair get into a fight about how things were screwed up. (A Resident Advisor and the Word 'Sketchy')

An Ugly Car, an Affair and Some Kickass Football 8

Mandy thinks the casino is amazing.

Mandy joins the Cooper family for dinner and is promptly asked about menstrual cycles. She refuses to answer. Later afterward, she talks to George about life. She goes with Meemaw to the baby doctor, where she is shocked at the amount of money Meemaw has. Later at the Laundromat, she is shown the casino and is happy that the earnings can pay for private school. (An Ugly Car, an Affair and Some Kickass Football)

Mandy and Georgie at a restaurant where she and Georgie had an awkward run in with her parents. Later, she come storming into the Laundromat because Georgie was talking to her parents behind her back. When Georgie went to Meemaw's house to admit he was wrong, Mandy yells at him. But Mandy saw her father's truck outside the Cooper house so she enters and confronts her father and talks to him; she leaves in disappointment. (A Tougher Nut and a Note on File)

Mandy was working at Video Village when Mrs Howard came and returned a copy of Basic Instinct. Mrs. Howard didn't like that they were renting inappropriate films. Later, Pastor Jeff Difford set up a table in front of the video store to protest the sinful movies. Mandy heard them. She attempts but fails to convince them to leave their table. Later she was talking to Meemaw and Georgie when Kimberly, the reporter, walked in for an interview. (Legalese and a Whole Hoo-Ha)

Mandy visits Dr. Nicholson for a checkup. He tells her due to high blood pressure, she has to have a bed rest for a week. She is in the room, and asks for remote control, which Meemaw gets her. Mary talks to her later. (Ruthless, Toothless and a Week of Bed Rest)

She was asked what she wanted to do for her own baby shower, of which nothing interested her. The day of the baby shower, she was in her room and Missy came in to lift her spirits and to come down. She goes downstairs and talks to the people, who gave her gifts. Brenda gave pads, which she described as necessary due to experience. The second one she got was from her mother, which was a key to the guest room. She was not happy so she left. (A Baby Shower and a Testoterone-Rich Banter)

Mandy calls the Cooper house phone and talks to Sheldon, asking for an adult. No one is there. Sheldon offers to deliver the baby but is refused. She is taken to Medford Community Hospital by Brenda Sparks. She walks around a bit and sees Meemaw who was in the hospital after a hemorrhoidectomy was completed. She brings Mandy back to the room. Everyone comes in and people want to argue a bit. Georgie comes into the room, to her relief. (A Launch Party and a Whole Human Being)

Georgie drives Mandy and baby Constance home. She is taking care of the child when Missy comes in to talk; She later tells her that she just had a child so she is not able to help her. Sheldon comes to her place to try to placate her child. He witnesses Sheldon sing Constance to sleep with Soft Kitty, and is immediately wondrous how he did so. He later talks to Georgie and recognize the fact that they are new parents and can become better parents. (Teen Angst and a Smart-Boy Walk of Shame

Mandy is at home taking care of the kid when she overhears that Missy is gone. (A Stolen Truck and Going on the Lam)

Mandy bought two sessions of spa treatment for her and Goergie at the Piney Woods Hotel and Spa. She wanted him to join, to his chagrin. There, they arrive in a room, and the massage therapist arrive. They engage in an awkward conversation where he makes his points, forcing her to get up in the middle of the session and leave. Afterwards, during the drive home, she agrees to marry Georgie and kisses him. (A Romantic Getaway and a Germanic Meat-Based Diet)

Mandy and Georgie goes to the McAllister’s to tell them about the wedding, she gets into a fight with Audrey and tries to leave but a storm stops her from doing so, Jim makes them get shelter in the bathroom, Georgie tells her that they might not have a big wedding and tells her the price of the ring which shocks her. (A Tornado, a 10-Hour Flight and a Darn Fine Ring)

Season 7

Mandy goes to live with the Coopers, she and Georgie ends up getting Sheldon’s room. Later, Mandy visits the gambling room and is proud at Georgie from all the customers in the gambling room, Georgie reveals to her that Audrey (Mandy’s Mom) offered them a place to live, Mandy declines and says that her mom has been plotting her life since she was born. (A Wiener Schnitzel and Underwear in a Tree)

Mandy gets ecstatic when she finds out Georgie is making $1k a night from the roulette wheel, she calms him down when he gets concerned about the illegality of it. (A Roulette Wheel and a Piano Playing Dog)

Mandy is in the kitchen while Georgie comes in with flyers, Georgie thinks of becoming a guitarist, Mandy asks why, Georgie tells her that its so her love for him deepens, while Georgie gives George Mary’s letter, Mandy says that she thinks its romantic that he and Mary are writing each other letters. Mandy reads the letter Georgie made and flirts with him. Later, when George tries to use the restroom, he sees them taking a shower together. (A Strudel and a Hot American Boy Toy)

Mandy, George, Georgie, Missy, and CeeCee are eagerly waiting at the airport in Houston for Sheldon and Mary to arrive home from Germany. When they arrive home, Mandy tells Sheldon she and the baby have been sleeping in his room, and when he asks if he could get his room back, Mandy declines. This forces Sheldon to sleep on the couch and is constantly woken up by CeeCee's crying and when Mandy hears about this she doesn't help him. Later on in the episode, she is shown eating with the Coopers. (Ants on a Log and a Cheating Winker)

Missy asks Mandy for party advice but when Mandy was giving her the advice Missy asks Mandy if she can buy them beer but Mandy declines it saying that the only underage person she's ever gonna buy beer for is Georgie, Missy tells Mandy that she's really not cool and leaves, Mandy thinks about what Missy just said. (A Frankenstein's Monster and a Crazy Church Guy)

Mandy finally plans the wedding when Mary asks about it, but when she learns that Mary and Audrey have baptized CeeCee without her consent, Mandy gets mad and goes to Dale's house to talk to Meemaw about it, while the two were talking, Georgie comes in with flowers and Mandy finally makes up her mind and chooses to get married in city hall. (Baptists, Catholics and an Attempted Drowning) They would successfully get married at city hall. (A Proper Wedding and Skeletons in the Closet)


  • Mandy was estranged from her family for years until Georgie brought them together.
  • In The Big Bang Theory, it was mentioned that Georgie had at least two ex-wives - Mandy presumably being one of them.



The Big Bang Theory Episodes
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Young Sheldon Episodes
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Season 1 M I 0
Season 2 0
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Season 5 M M 6
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Season 7 14
Appeared M = Mentioned Did not appear Not aired/Not available
V = Voiced C = Cameo F = Flashback I = Indirectly mentioned P = Pictured
v · e · d
Young Sheldon Characters
Main Characters Main Sheldon Cooper  ‧  Mary Cooper  ‧  George Cooper Sr.  ‧  George Cooper Jr.  ‧  Missy Cooper  ‧  Meemaw  ‧  Jeff Difford  ‧  Billy Sparks  ‧  Amanda McAllister
Recurring and Minor Characters John Sturgis  ‧ Tam Nguyen  ‧  Paige Swanson  ‧  Veronica Duncan  ‧  Brenda Sparks  ‧  Herschel Sparks  ‧  Victoria McElroy  ‧  Evelyn Ingram  ‧  Wayne Wilkins  ‧  Hubert Givens  ‧  Sheryl Hutchins  ‧  Gene Lundy  ‧  Tom Petersen  ‧  Le Nguyen  ‧  Trang Nguyen  ‧  Mai Nguyen  ‧  Kim-Ly Nguyen   ‧  Barry Swanson  ‧  Linda Swanson  ‧  Erica Swanson  ‧  Dale Ballard  ‧  Selena  ‧  Robin Difford  ‧  Jana  ‧  Marcus Larson  ‧  June  ‧  Grant Linkletter  ‧ Linda Hagemeyer  ‧ Pat  ‧ Professor Boucher  ‧ Jim McAllister  ‧ Audrey McAllister  ‧ Amber