Critical response
For the first season, the review aggregator website Rotten Tomatoes reported a 97% approval rating, based on 113 critic reviews, with an average rating of 7.65/10. The website's critics consensus reads: "Just about as gruesomely subversive as its origin series, Gen V builds on The Boys in occasionally chaotic but overall inspired fashion." Metacritic, which uses a weighted average, assigned a score of 73 out of 100, based on 31 critics, indicating "generally favorable" reviews.
Writing for the first three episodes, Matt Donato of IGN gave the series a score of 9 out of 10, praising the writing, humor, characters, and performances of its cast (particularly Broadway), and wrote, "Gen V does a tremendous job expanding on themes from The Boys that beg for deeper analysis, like the disgusting reality of Compound V injections. [...] [It] feels uniquely mapped as a spin-off that doesn't rely on cameos from [its predecessor] to assure relevance or importance." Alec Bojalad of Den of Geek gave it a rating of 4 out of 5 stars and wrote, "Ultimately, Gen V doesn't appear to be striving for greatness but for something just as elusive. Successfully franchising a concept as antagonistic to franchises as The Boys is no small feat. By embracing the youthful energy of its cast and some solid TV storytelling fundamentals, [the series] is able to somehow make it all work." Lauren Milici of GamesRadar+ rated it with 3.5 out of 5 stars and wrote on her verdict: "Despite its flaws and bumps, Gen V is a good time. It's a hot mess, but it's a damn good time". She then praised Germann's performance, calling it "the standout of the season".
Lorraine Ali of the Los Angeles Times also praised the characters and Broadway's performance and stated that the series "expands upon the hit superhero satire with a new cast and storyline that stands on its own as a sharp, snarky commentary on the billion-dollar business of hero worship". Reviewing the first six episodes, The Hollywood Reporter's Daniel Fienberg called the series "uneven but entertaining", lauding the performances of Broadway, Sinclair, Phillips, Schwarzenegger, Germann and Thomas, but criticizing the pacing and some of its writing, adding that "[the series] lacks patience. It's so eager to charge forward that it can't be bothered giving most of its main characters personalities, much less building believable relationships among them. It tries filling in gaps as it goes along, but episodes get shorter and shorter, and when it comes to the choice between characters and plot, [it] chooses plot every time. [...] [But] whenever it's able to pause and breathe, the writing is clever, the effects are polished and the cast is good". Michael Boyle of SlashFilm rated the series a score of 8 out of 10, criticized the "bluntness of its writing", but praised its characters and performances, especially Broadway's. For the penultimate episode, TVLine gave Sinclair and Phillips an honorable mention for the "Performer of the Week" for the week of October 28, 2023, stating that the two "delivered strength and heartbreak on behalf of their characters" and calling them "a dynamic duo".
In his review for the season finale, IGN's Matt Donato, giving the episode a score of 8 out of 10, opined that "[the series] cleverly shows what happens when supes who've been branded as outcasts find a sense of camaraderie and community in redirecting that hatred. [...] [It] firmly establishes [the] supe-killing virus as an apocalyptic threat for The Boys' next season, but also ensures [that it] works as a standalone collegiate mystery with supercharged conflicts", and that the episode "closes [the season] by answering enough lingering questions to make its storytelling journey feel complete". Vulture's Ben Rosenstock, rating the finale with 4 out of 5 stars, concluded his review by saying, "[Gen V] remains an imperfect show, at times a little emotionally simplistic and contrived. But while I often wanted it to take its time and develop the characters more, I had a really good time watching this solid debut season. It's a welcome complement to The Boys, helping fill in more details of the world. Meanwhile, in a mixed review, The A.V. Club's Manuel Betancourt criticized the "deus-ex-machina machinations" but commended the characters and performances of Germann and Broadway, naming them "two of the strongest cast members in the show's ensemble".
Gen V was named among the best TV shows of 2023 by several publications.
The second season has a 91% approval rating on Rotten Tomatoes, based on 94 critic reviews, with an average rating of 7.65/10. The website's critics consensus reads: "Tastefully navigating the tragic loss of Chance Perdomo while getting a big boost from Hamish Linklater's villainous turn, Gen V's sophomore season gets high marks as a spinoff that feels essential." On Metacritic, the second season received a score of 74 out of 100, based on 15 critics, indicating "generally favorable" reviews.