13. Justice Smith (Jurassic World: Fallen Kingdom)
There were worse performances in 2018, but were there any as flat-out annoying as Justice Smith's grating turn in Jurassic World: Fallen Kingdom?
His twitchy techie Franklin Webb became an instant magnet for fans' hatred towards the blockbuster sequel, with his high-pitched screeching and general cluelessness proving immensely frustrating.
Granted, Smith had virtually no chance to save the character as written, but even so, it's not a terribly positive sign of your acting chops when a good deal of the audience is actively anticipating your demise. A demise that never even arrived, sadly.
The movie as a whole was a baffling misfire, and while Franklin isn't the script's most offensive creative call, nothing else in Fallen Kingdom is quite this obnoxious.
Fingers crossed Smith's a little more charming in the upcoming Detective Pikachu.
Stay at home dad who spends as much time teaching his kids the merits of Martin Scorsese as possible (against the missus' wishes).
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