Erica Sinclair

Erica Sinclair is a major character in the franchise. 
Erica is the younger sister of Lucas Sinclair, whom she often teases and insults for being a nerd. In 1985, Erica became pivotal in helping Dustin Henderson, Steve Harrington and Robin Buckley investigate the Russians in their plot to open the gate.
She is portrayed by Priah Ferguson.
==Personality==
Erica is the somewhat typical annoying and little sister to Lucas and a source of irritation to him. She constantly calls him weird and annoying due to his nerdiness and for the same reason isn't fond of Lucas' friends, thus barely showing any respect to them. However, despite her abject disapproval of nerds, it is revealed in the third season that she is a math whiz and therefore a nerd herself. It's also implied she sneaks into his room and steals his stuff, such as Lucas' He-Man action figure. Additionally, while she does not doubt the existence of the Upside Down and the creatures that come from it after Dustin explains them to her, she initially refused to believe that Lucas was involved with either of them until he helped save her from the Russians. 
She is also incredibly self-centered, choosing to help Dustin, Steve and Robin infiltrate the Russian base beneath Starcourt Mall with the promise of free ice cream and protecting capitalism rather than out of patriotism. In the end, however, she softens up to the gang and the boys give Erica their Dungeons and Dragons set. Erica is a fan of My Little Pony, even naming her D&D character after Lady Applejack.
==History==
===Background===
Erica Sinclair was born in Hawkins, Indiana in 1975 to Charles and Sue Sinclair, and is the younger sister to Lucas.
===Growing up with Lucas===
On the morning of October 31, Erica watched as Mrs. Sinclair photographed Lucas in his Ghostbusters costume. She taunted him, calling him a “nerd”.
Erica was having breakfast with the rest of her family when Lucas asked their father for advice. Later, when Dustin Henderson was trying to contact his friends to warn them about Dart, Erica, who had sneaked into Lucas's room, was the only one to answer him. Dustin tried to explain to her the severity of the situation, however, Erica didn't listen and turned the radio off.
The next day, Erica was playing in her room when Lucas came to retrieve his toy she had taken from him. It was then that she finally revealed to Lucas that Dustin had been trying to contact him.
On the night of the Snow Ball, Erica again made fun of Lucas after she witnessed him talking in front of his mirror, practicing how to ask Max Mayfield to dance.
===Working against the Russians===
In the summer of 1985, Erica hangs out at the Starcourt mall, where she spends most of her time abusing the free samples at Scoops Ahoy. When Dustin Henderson, Steve Harrington and Robin Buckley discover that the Russians are in the mall, they ask for Erica's help in entering the air ducts. Erica agrees to help them in exchange for free ice cream for life, and proceeded to enter the air ducts to open the door for them. Inside the room, the group find a container that holds a green substance, but before they can leave, are trapped in the room when it goes underground. Realizing that they're in an elevator, they are forced to stay there for a day until the Russians arrive with karts. When they leave, the group are able to escape when Steve uses the green container to hold the door open.
Reaching the underground base, Erica, Dustin and Robin witness Steve defeat a Russian in combat, and Henderson congratulates him for winning his first fight. The troop then reach another room and find a machine, but they are forced to escape when the Russian Steve knocked out alerts the guards. Erica and Dustin are able to escape through the air ducts, but Steve and Robin are captured and interrogated by the Russians. Deciding not to abandon their friends, the pair return and save the teenagers, and Dustin tasks Erica with watching them since they are high off Zharkov's truth serum. Steve and Robin later leave the Back to the Future screening to vomit, and Erica reunites with them and Dustin when they are cornered by the Russians. Before they can be killed, the party arrive and Eleven uses her powers to stop them.
===The Battle of Starcourt===
Erica then agrees to help her allies stop the Mind Flayer, working with Dustin to get the code to allow Jim Hopper, Joyce Byers, and Murray Bauman shutdown the machine. She and the others then hear Dustin's duet with Suzie, and she remains with Henderson as the machine is shut down and the military arrive. Following the Starcourt incident, Dustin and Lucas give Erica a game of Dungeons & Dragons.
===War against Vecna===
While attending Hawkins Middle School, Erica has become a player of Dunegons & Dragons, and is later asked by Dustin and Mike if she could act as a substitute for the Hellfire Club's game.
==Quotes==
==Trivia==
*Erica is the second youngest sister of a member of the Party; after Mike's baby sister Holly.
*Erica considers herself to be an American capitalist rather than a communist.
==External Links==
*Erica Sinclair on the Inconsistently Admirable Wiki
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