The Flash: 10 most disliked characters, ranked
9. Chester P. Runk (season 9)
Chester P. Runk was one of the most exciting new additions to The Flash in its sixth season. His enthusiasm was so charming and his personality so joyous, and while he certainly never lost those qualities, the writing did him such a disservice in the final few seasons that fans began to grow tired of him and his repetitive romance with Allegra Garcia.
While some of the newer characters felt a bit pointless, that was never Chester's issue. He was a welcome member of Team Flash who understandably took over as the tech guy when Cisco Ramon left in season 7. It all made sense from that standpoint. That said, he was given little-to-nothing to do outside of spouting quirky one-liners or some technological mumbo jumbo. Cisco, on the other hand, was a fully developed character with ongoing storylines. Chester was just there.
Pairing him off with Allegra was such a bland but predictable storyline that allowed the writers to give them both something instead of developing their characters via separate storylines. Thus, when the ninth and final season of the show kept dropping important storylines to focus on a by-the-numbers will they/won't they romance that we already knew the outcome of, fans gave up on the hopes of anything meaningful for either of those characters. And the need to stick the two of them and Cecile at the forefront of at least one meaningless caper-of-the-week episode per season also harmed the love fans initially had for them.
Chester was so much fun when he first joined the show but the lack of focus or development for the character - and the amount of time wasted on that pointless romance - squandered all of his potential. Fans didn't want to see his romance with Allegra get its predictable outcome in the final season and that resulted in them growing tired of Chester too - something that many of us thought wouldn't happen.