Getty ImagesComic-Con 2019 is officially underway.
For the past few days, fans from across the globe have gathered at the San Diego Convention Center in California to celebrate superheroes, sci-fi and more in pop culture.
This year marks Comic-Con's 50th anniversary—so there are plenty of star-packed panels, major film and TV announcements and even a few surprises for attendees to enjoy. Fans have also been taking pictures of the array of creative costumes they've seen on the convention floor.
Another reason fans are excited? Marvel is headed back to Hall H. After skipping the main stage last year, the studio is making its return on Saturday. While fans are already predicting what's next for the MCU, they'll have to wait until the big event to hear what the famous franchise has in store.
Of course, if Marvel's panels are anything like they've been in the past, enthusiasts can expect to see a few familiar faces.
To look back at some of the Marvel stars' appearances over the years, check out the gallery.
Stan Lee
The late comic book icon was presented with the All Time Marvel Legend Award at Comic-Con 2007.
Gwyneth Paltrow & Robert Downey Jr.
Back to where it all began! The stars greeted the crowd and showcased Iron Man clips for the first time in 2007.
Chris Hemsworth & Natalie Portman
The Thor and Jane Foster characters shared a laugh at the Thor panel discussion at Comic-Con 2010.
Robert Downey Jr. & Don Cheadle
The Tony Stark and Colonel James "Rhodey" Rhodes characters attend a 2012 panel for Iron Man 3.
The Avengers Cast
Say "cheese!" Samuel L. Jackson, Tom Hiddleston, Scarlett Johansson and Chris Evans assembled for one super photo in 2013.
Chris Pratt & Zoe Saldana
Thumbs up! The Guardians of the Galaxy stars teamed up for the movie's press line in 2013.
The Agents of S.H.I.E.L.D. Team
Creators Maurissa Tancharoen and Jed Whedon posed for a pic with Elizabeth Henstridge and Iain De Caestecker in the press line in 2013.
Chloe Bennet
The Agents of S.H.I.E.L.D. star was all smiles at this 2013 panel.
Mark Ruffalo & Chris Hemsworth
Hulk and Thor enjoyed a laugh at this 2014 panel.
Elizabeth Olsen
The Scarlet Witch star seemed to have the audience under her spell at this 2014 panel.
The Ant-Man Cast
Michael Douglas, Evangeline Lilly, Paul Rudd and Corey Stoll headed to Hall H for a 2014 panel.
Kevin Feige & Hugh Jackman
The Marvel Studios president and the Wolverine star posed for a picture at the 2013 convention.
Robert Downey Jr. & Josh Brolin
Iron Man and Thanos joined forces—but just for this 2014 presentation.
Tom Holland & Zendaya
The Spider-Man: Homecoming stars struck a pose at the 2016 fan festival.
The Doctor Strange Cast
Mads Mikkelsen, Tilda Swinton, Benedict Cumberbatch, Benedict Wong, Chiwetel Ejiofor, Scott Derrickson and Rachel McAdams came together for one powerful 2016 panel.
Tilda Swinton & Brie Larson
Larson was announced as the star of Captain Marvel at this 2016 convention.
The Luke Cage Cast
Frank Whaley, Theo Rossi, Simone Missick, Mahershala Ali and Alfre Woodard sat down for a discussion in 2016.
The Thor: Ragnarok Cast
Tom Hiddleston, Mark Ruffalo, Cate Blanchett and Jeff Goldblum were one super squad at Comic-Con 2017.
The Black Panther Cast
Andy Serkis, Ryan Coogler, Forest Whitaker, Michael B. Jordan, Winston Duke, Daniel Kaluuya, Danai Gurira, Lupita Nyong'o, Chadwick Boseman and Letitia Wright squeezed in for a selfie at Comic-Con 2017.
The Eternals
Angelina Jolie made her MCU debut at Comic-Con 2019. That year, it was announced the Oscar winner would star in The Eternals, directed by Chloé Zhao, along Richard Madden, Kumail Nanjiani, Lauren Ridloff, Brian Tyree Henry, Salma Hayek, Don Lee, Lia McHugh, Gemma Chan, Kit Harington and more stars. But that's not all! That same year, Marvel announced its plans for Black Widow, Shang-Chi and the Legend of the Ten Rings, Doctor Strange in the Multiverse of Madness, Thor: Love and Thunder, Blade, Hawkeye, What If…?, Loki, WandaVision and The Falcon and the Winter Soldier.
Comic-Con ends Sunday.