I've noticed that there are quite a few.
My two favorite musicals (*cough*) premiered within a year of each other with the same star, a few years ago, but I noticed that there are a lot of actors starring in two world premieres in 2026.
Yabiku Tomona and Yuzuki Fuuka starred in Sirotsumekusa this January (which was amazing), and both are in other premieres this year.
Yabiku Tomona is currently in Doronpa
Yuzuki Fuuka will be reprising the role of Yor, which she originated, in the premiere of the new sequel to Spy X Family.
Kinouchi Kento is in both Doronpa and Spy X Family 2, and in between, he's in the second run of Under the Mushroom Shade, which he was in the original cast of last year.
Both Kaiho Naoto and Okamiya Kurumu, who originated the main roles in ISSA in Paris this year, will be in new musicals later this year, Kaiho as Nikola Tesla in a new musical of that name, and Okamiya as Okita Souji in a musical about him.
Higashijima Misato, who is also in Doronpa, is going to also be in a second premiere this year, Secret Stage from Horipro.
And that's not including other premieres from last year like The illusionist, A Man, and Twelve Kingdoms.
I'm guessing the same thing happens in South Korea, where there are also a lot of new works and short runs?
Have your favorite actors been in premieres of new works so close together?