DanielRPK:Beast from the Fox X-Men, played by Kelsey Grammer, will appear in The Marvel's post credit scene, and supposedly will be the merging of the MCU with the Fox universe for Deadpool

Kelsey Grammer Breaks His Silence on MCU Return as X-Men's Beast

Kelsey Grammer Returns as Beast in 'The Marvels' Post-Credit Scene - Knight Edge Media

Kang is still the main villain of the MCU - here are the latest developments

DCEUleaks: Kelsey Grammer's version of Beast will feature in The Marvels end credits. : r/MarvelStudios_Rumours

Kelsey Grammer Breaks His Silence on MCU Return as X-Men's Beast

X-Men featured Kelsey Grammer's Beast will appear in Marvel Studios' The Marvels Post Credit Scene

Marvel Needs to Leave the Fox X-Men Behind for Good

Kelsey Grammer on Making His Surprise Marvel Return as Beast in 'The Marvels' (Exclusive)

The Marvels Post-Credit Scene Rumored to Feature Return of Kelsey Grammer's Beast

The Marvels X-men Kelsey Grammer Beast and Binary Post Credit Scene Ex

With the X-Men gradually coming into the MCU, I really hope that Kelsey Grammer will reprise his role as Beast. Grammer really nailed Hank's intelligent & sophisticated nature. : r/marvelstudios

DanielRPK:Beast from the Fox X-Men, played by Kelsey Grammer, will appear in The Marvel's post credit scene, and supposedly will be the merging of the MCU with the Fox universe for Deadpool

X-Men star “confident” he'll return to MCU - Dexerto