Spider-Man: Far From Home was a fantastic showcase for the broad range of characters the MCU iteration of the Spidey franchise has quickly developed. Peter Parker's classmates went with him to Europe for the summer, leaning heavily on classic teen movie tropes. They also took part, to one degree or another, in his battle against the mysterious and duplicitous Mysterio.
As fun as everybody is in the movie, not every character is likable. Some are deliberately portrayed as unlikeable, though there could be more than meets the eye in some cases. As always with Spider-Man, things tend to be pretty complicated.
Mysterio
Without a doubt, Mysterio is one of the least likable characters in the movie, though he doesn't start out that way. Quentin Beck initially comes off as very sympathetic. He says he's from an alternate version of Earth completely destroyed by the Elementals (a plot hole later movies are poised to close).
He then reveals himself to be a desperate and rather basic villain simply out for the EDITH glasses that Tony Stark left Peter Parker. His depravity knows no bounds though. His final act— maybe— is to frame Peter for his own death.
Brad
Brad is one of the few characters in the movie unaffected by the Snap. When everyone comes back from their five-year absence, Brad has grown— though he's still in high school for some reason. He hasn't matured any, though.
Brad goes to great lengths to sabotage Peter's relationship with MJ so Brad can have her for himself. He eventually gets his just deserts when MJ realizes what he's trying to do. She's pretty smart; she figures out that Peter is actually Spider-Man, after all.
Flash
Flash Thompson is a straight-up jerk in these movies. His constant berating of Peter Parker recalls a lot of high-school bullies. There might be more to Flash than is presented though. In Far From Home, fans start to get a sense of the character's home life. Well, of its non-existence anyway.
He isn't greeted by family like the other students and despite his behavior, does seem in need of friends. There's a lot of potential in the character and a very good actor to deliver it in Tony Revolori, who also tried out for other MCU roles.
Nick Fury
Nick Fury was a little grumpy in Far From Home. It's understandable: He had been snapped, and he had lost friends and colleagues to Thanos. Also, he was a Skrull. Fury is always fun but in this movie, he was deliberately played a bit more cantankerous than usual given the circumstances.
In the end, fans discovered the real Nick Fury was in outer space with even more Skrulls. This still-mysterious teaser definitely set up his upcoming Disney+ solo series.
Betty
Betty Brandt is one half of the cutest couple in Far From Home, but she may not be the most likable person on her own. Betty is smart, self-reliant, and determined. She's so determined she gets a little bossy with her newfound boyfriend, Ned.
It's safe to say she dictates most of what they do during their very brief fling in Europe. That makes for a lot of good comedy, but on the likability scale, she suffers a little bit. Not that Ned really minded at all.
Happy Hogan
Happy Hogan is always as his name suggests. The lovable lunk provided Peter Parker with another mentor in the absence of Tony Stark, something the movies might want to consider avoiding going forward.
He also provided a love interest to Aunt May, which really upped his stock. Maybe not so much with her in the end. Happy is one of the more affable characters in the MCU and his presence is always comforting, even in the direst of his circumstances.
Ned
Ned is Peter's always reliable, always eager friend. He dives into every situation with as much excitement and energy as he can. That probably explains the breakneck speed of his relationship with Betty. Their whirlwind romance takes everyone by surprise and provides some of the best laughs of the entire movie.
It also helps fans appreciate Ned more, though they might wonder about how easily he goes along with Betty's direction sometimes. Still, the two of them were adorable together.
Aunt May
Aunt May in the MCU is different than any we've ever seen before. She's not elderly for one— which, why was she ever?— and she's much more involved in Peter's life as Spider-Man at this stage in his career. Her loving demeanor is offset a little by her anxiety. It's clear she suffers from some kind of PTSD, possibly related to Ben Parker's so far unexplained absence.
In Far From Home, Aunt May gets a brief romance with Happy Hogan and fans get an Aunt May who is vibrant, fun, and actually feels like part of the team.
MJ
MJ is not the classic Mary Jane Watson from the comics, and she's not really like any of Spider-Man's established romantic interests from the movies. She's much nerdier— with a very intense interest in some very dark subjects, like the Black Dhalia murder— than he's been shown to be into, but that makes her all the more compelling.
MJ is smart, funny, and sweet. She's a great friend to Peter and a colleague as well in the battle against evil. It will be fascinating to watch her continue to grow as a character.
Peter Parker
Spider-Man has to be likable. If he's not, his witty bravado behind the mask can sometimes read as arrogance, as it did with the Andrew Garfield version of the character. Tom Holland has Peter Parker down cold. He's brave, funny, and vulnerable all at the same time.
He wants to be a normal kid. He wants to be a super-hero. He wants to ask MJ out on a date. Spidey is a quintessential teenager and superhero all at the same time, making him one of the most likable characters in the MCU.