Marvel did a stream announcement for the cast of Avengers: Doomsday.

The start of the streaming.
It happened! The stream began at 11am ET, with a shot of Chris Hamsword chair. This stayed for 15 minutes long. At 11:15 we heard Fantastic Four music and the camera moved to the next chair reading “Vanessa Kirby”. So that meant that Thor and Sue Storm were coming back. Assuming this is for Avengers: Doomsday and assuming they are reprising their current Marvel roles. With many fans watching and others checking back on a more than 5 hour stream, we learned slowly but churly that every 10-15 minutes a new cast member for Avengers: Doomsday.
11:28 ET — The music for Captain America starts playing, and Anthony Mackie’s chair is revealed. We can assume he’s reprising as Sam Wilson, based on the music being from Captain America.
11:40 ET — Music came on and the chairs of Sebastian Stan revealed, making it a Falcon and the Winter Soldier reunion. At this point The official Avengers Twitter account has posted that Avengers: Doomsday is “now in production.”
11:52 ET — While the iconic score from Black Panther is playing and fans wonder if T’Challa was going to be recast. We see that Letitia Wright’s name is on the back of the next chair.
12:06 ET — The score for Ant-Man starts and the camera moved over to reveal an empty space where a chair should be. Then it went down to reveal a very tiny chair with “Paul Rudd” on it.
12:15 ET — It’s going to be three stars returning from Falcon and the Winter Soldier and a cast member from Thunderbolts. Wyatt Russell, was the next chair.
12:27 ET — One of the biggest surprises of the reveal so far was Tenoch Huerta Mejia coming up on the next chair, revealing the return of Namor.

12:41 ET — Fans are familiar with the Fantastic Four: First Steps score, introducing Ebon Moss-Bachrach, who is playing Ben Grimm this summer.
12:52 ET — After years of waiting Simu Liu is returning to the MCU, likely reprising his role as Shang-Chi.
1:05 ET — The next chair belongs to Florence Pugh, making it obvious that Thunderbolts* will be a big part of the cast.
1:18 ET —The first surprise was the next chair, from Kelsey Grammer, who played Beast in the first three X-Men films. He reprised his role in the post-credits scene of The Marvels. Making it the first post-credit scene from the Multiverse Saga coming to justice.
1:41 ET — The next chair belongs to Danny Ramirez, who played Joaquin Torres aka the Falcon in the most recent Marvel movie Captain America: Brave New World.
1:53 ET — As we could predict, the third member of the Fantastic Four was revealed. The next chair was from Joseph Quinn.
2:04 ET — To change things, there's a Thunderbolts* in Doomsday. David Harbour was announced. This makes fans even more wondering if that asterisk in the title hints to the Dark Avengers.

2:15 ET — A fan favorite in the MCU, surprised fans to see that Winston Duke’s name was on the next chair. He plays M’Baku, the king of Wakanda.
2:31 ET — The Thunderbolts* are not stopping. Hannah John-Kamen aka Ghost is revealed.
2:42 ET — After the hard breaking ending in Loki Season 2, Tom Hiddleston is the next beloved actor to be cast in Avengers: Doomsday. Fans or wondering if the two brothers will be charging the screen together.
2:54 ET — More X-Men! Patrick Stewart is revealed to be the next name to be on a chair. He already appeared, playing an alternate version of Charles Xavier in Doctor Strange in the Multiverse of Madness… and we all know how that turned out.
3:08 ET — What’s the point of Professor X coming back. without having Magneto? It’s officially revealed that Ian McKellen is cast for Avengers Doomsday. Maybe the old X-Men are coming back?

3:21 ET — If you love the X-Men you're in for a treat. Alan Cumming is the next chair that is revealed. He played Nightcrawler in X2 and is responsible for the amazing scene in the White House.
3:33 ET — The following chair belongs to Rebecca Romijn, who starred as Mystique in the original X-Men movies.
3:45 ET — It's Christmas and New Year at the same time. Next up is James Marsden, likely reprising his role as Cyclops.
3:58 ET — The sound of Deadpool And Wolverine are starting to play. Fans were going wild after learning that Channing Tatum is returning for Avengers: Doomsday. You can say he made a name for himself.

4:13 ET — With fans guesting when we get the final member of the Fantastic Four, Pedro Pascal finally got announced, which means that they are all returning to fight against Doctor Doom.
4:26 ET — The final chair was revealed to be Robert Downey Jr. where he walks alongside the chairs and sits down in his chair.


looking back
The news that Avengers: Doomsday starts filming and that we got 27 actors revealed in a live stream instead of San Diego Comic-Con is insane. When the stream ended Marvel Studios replied to a reaction from RDJ under an Instagram post that “there is always room for more…”.
In December it was reported by TheWrap that Chris Evans will return for Avengers: Doomsday, probably playing a different character. Evans denies those reports.
Who do you think is missing in this cast and what or your theories?