Yup, and Thanos didn’t wipe him off the face of the galaxy, Star-Lord and his crew get the credit for that.
Ronan the Accuser, played by AMC’s Halt and Catch Fire protagonist Lee Pace, was the main villain in James Gunn’s first Guardians of the Galaxy, serving as one of the Marvel Cinematic Universe’s most insane and ridiculous villains; definitely a fan favorite!
While not a highly recognized supervillain as Thanos, Galactus, or even the Red Skull, Ronan the Accuser in Guardians of the Galaxy delivered something that not a single villain from any MCU film before Captain America: Civil War had done, that is to completely become a central dynamic component of the film, creating an audience-to-character connection so captivating, that you either completely loved the guy for his indisputable egotistical feature, or hated him for his horrendous looks of doom (looking like an expired Listerine bottle, as my brother put it).
For once I felt scared for the heroes on screen, I seriously thought Ronan had a chance in achieving his ultimate goal—destroying the Nova Corp.'s planet, Xandar, especially after he threatened to kill Thanos once he had destroyed the planet. I can't say the same for Loki, or even Ultron.
Loki was one main villain that almost had a similar feel in 2012’s The Avengers, and as great as Tom Hiddleston was as the god of mischief, Loki still didn’t feel as such a serious and sophisticated villain as Ronan. This is due in part because Loki’s essential characterization, even in the comics, feels as though he is a being of predestined failure.
Though he has in fact succeeded in some of his comic book adventures, like his multiple reigns over Asgard, most of Loki’s plans seem to always take a different turn (recap his failed attempt to take over New York in The Avengers).
Ultron is one of my favorite villains from the MCU, but since he was defeated so unquestionably quick, unless he returns, then he doesn’t compare to Ronan’s cinematic portrayal. Ultron was born and later died in a span of almost a month, maybe less, and completely failed, worst than Loki.
It is this sole aspect that destroys his malignant philosophical structure, his intentions for a better world by destroying it then rebuilding it, was blinded by his inexperience to conquer, as opposed to Loki and Ronan, which resulted to his rapid defeat. In a way, Ultron was also a bit naive, like he described Vision at the end of Avengers: Age of Ultron.
Ronan, the Great!
If I were to make a list of the top villains the MCU has had so far, Loki would definitely be in the number three spot along with Ultron (James Spader’s voice-acting was incredible!), with Daniel Bruhl’s Helmut Zemo coming at number two (since he literally broke the Avengers in Captain America: Civil War by putting them against each other), and of course Ronan at number one.
If you take all of the disposable MCU villains (those being: Iron Monger, Whiplash, Red Skull, Malekith, Aldrich Killian, Yellow Jacket, plus some others) and you put them together in a blender, the resulting villainous smoothie wouldn’t even match the over-the-top extravagance of Lee Pace’s Ronan the Accuser.
Guardians of the Galaxy Vol. 2
Unfortunately it looks like Ronan the Accuser won’t be finding his way into next year’s Guardians of the Galaxy Vol. 2, as no official information has surfaced on whether Lee Pace will return to reprise his role as the great Kree champion.
Guardians of the Galaxy Vol. 2 is scheduled to release on May 5, 2017, and stars Chris Pratt, Zoe Saldana, Bradley Cooper, Dave Bautista, and Vin Diesel, reprising their roles as Peter Quill/Star-Lord, Gamora, Rocket Raccoon, Drax the Destroyer, and Groot, respectively.