Lucas Sinclair is one of the most divisive characters among Stranger Things fans. He’s one of four Party members, and possibly the most vocal about his opinions, which can put him at odds with the others very quickly. He makes his mind up about things immediately, which can be both a good thing and a bad thing.
Lucas is intensely loyal to his friends, but sometimes he can be surprisingly narrow-minded. His intelligence and quick wit can be an asset to the group, but he’s not always willing to work together with his friends. Lucas believes he knows best, which is sometimes true – but not always.
Updated on August 2nd, 2022 by Amanda Bruce: In Season 4 of Stranger Things, Lucas has a decision to make. He’s tired of being seen as one of the nerds, and tries to change his image up in high school. That, as usual, puts him at odds with his friends, but it also demonstrates consistency in his characterization even while he has some growing pains. Lucas has to deal with his guilt at realizing the extent of Max’s trauma and has to help his friends even while initially estranged from them. It’s a season of growing up for him.
It’s rare that Lucas is the smartest person in the room, but he is always open to learning more. When one of the teachers, or Eleven, or Dustin, or anyone else has more knowledge than him, even when he’s angry, he is willing to listen. He might brush off emotional arguments or ignore his friends when he disagrees with them, but when it comes to logic and science, he’s ready to learn.
Lucas is quick to pick up new vocabulary terms. He’s quick to understand complicated explanations from the Party’s science teacher. He’s also quick to put together puzzle pieces when he’s given them that help his friends unravel bigger mysteries.
No matter how rude or selfish Lucas can be, he always remains loyal to his friends. In Season 1, after Lucas splits from the Party, he still looks out for them and warns them about the “bad men” and their knowledge of Eleven’s whereabouts.
He forgets his spat with Mike and races to reunite with his friends and forgive Eleven. When it counts, Lucas puts the greater good ahead of his own needs. He protects his friends and helps them to work as a team.
Lucas displays his courage on many occasions throughout the show. He’s often the one to save the day, like when he goes out to the lab all on his own to discover that the Hawkins electricians are actually workers from the lab.
He also fights off the Mind Flayer on more than one occasion. Without Lucas’s courage, the Party certainly wouldn’t be able to defeat the evils plaguing Hawkins.
Everyone in the Party is a self-proclaimed nerd, and Lucas is no different. He has a passion for learning, experimenting, and trying new things. In particular, he likes science.
Sometimes he comes up with some clever (if unconventional) ways of dealing with their problems. Without his skills of deduction, intuition, and research, he and his friends would struggle to get out of dangerous, life-threatening situations.
Lucas is certainly clever, but he’s also innovative. Some of his methods for dealing with foes are a little outside the box. For instance, his weapon of choice is often a slingshot, but it actually works.
At the end of Season 1, Lucas defeats the Demogorgon by slingshotting a rock at it. In Stranger Things Season 3, he uses fireworks to detonate the Mind Flayer. In the thick of the action, Lucas goes full battle mode, war paint, bandana, and all.
Lucas may be stubborn, but at least he’s determined. He never gives up, which often ends up being a great asset to the group. He will see things through until the end.
Whenever a mystery presents itself, Lucas is the one who refuses to let go of it; he simply must find out what has happened, if only to satisfy his own curiosity.
Though Stranger Things is focused on the power struggle between Eleven and the monsters of the Upside Down, the central characters are all teenagers finding themselves. Someone like Dustin appears completely secure in who he is and embraces all aspects of nerd culture, regardless of who knows it. That’s not the case with Lucas.
Lucas is tired of being seen as a nerd. Despite his love for Dungeons & Dragons, video games, and learning, he wants others to see him as more than a nerd. That’s why Lucas joins the basketball team in Season 4. His insecurity and need to be popular make him push his closest friends away, driving a wedge between him and the rest of the Party.
Despite his creativity and intelligence, Lucas isn’t always the most observant person. He frequently misses the point his friends want to make. His observation skills, however, are really put to the test when Max distances herself from her friends following the events of Season 3.
Lucas tells Max repeatedly that he should have realized just what she was going through, that he should have paid more attention. While Lucas isn’t to blame for Vecna targeting Max, he still feels the guilt.
Lucas is quick to make up his mind about things without first taking the time to consider everything. For instance, Lucas doesn’t trust Eleven for a very long time, simply because she’s different.
If Lucas had been a little more accepting, the Party could have avoided a whole lot of danger and saved time in finding Will. Lucas’s judgmental nature can make him seem more standoffish than he really is, giving people the wrong impression of him.
Lucas doesn’t let people in easily. This is obvious with Eleven, but also with Max. He’s guarded, suspicious, skeptical, judgmental, and protective over the circle of friends he already has.
Some of Lucas’s negative qualities make him seem like a rude or mean person, even though that’s not really who he is; sometimes he displays shows of temper, but he can be very kind, as well.
Lucas is far too quick to make up his mind about people and situations without understanding their context. He also speaks and acts without thinking, acting solely on his emotions in the moment.
His quick temper is a big problem sometimes, but it seems that as he’s growing, he’s also becoming more level-headed. Lucas’s brashness can get the group into dangerous situations, as well as cause fights between the friends.
Sometimes, tenacity can be a good thing – but in Lucas’s case, he’s just stubborn. He doesn’t even try to consider things from other people’s perspectives, believing that he, and he alone, is correct in his way of thinking.