The guest star in 'Doctor Strange in the Multiverse of Madness' was keeping mum about any other potential Marvel appearances.

Those wondering if John Krasinski will be back in the forthcoming 'Fantastic Four' release from Marvel Studios will still be left pondering the subject as the star came up with a novel way of avoiding the topic - playing dead.

In case you weren't already aware - then apologies for the spoiler above - 'The US Office' and 'A Quiet Place' star made a brief appearance in the most recent 'Doctor Strange' film as Reed Richards from the newest members of the Marvel Cinematic Universe, the Fantastic Four. Krasinski was rumoured to be starring as the incredibly stretchy superhero for a number of years, and Marvel eventually buckled under the fanfare.

But will he be back for the first 'Fantastic Four' entry in the MCU? That's still very much up in the air. Over the past weekend, Kevin Feige, the head of Marvel Studios, announced at the San Diego Comic Con the release dates of Marvel's Phases Five and Six, with 'FF' due to kick off Phase Six in November, 2024.

Jimmy Fallon did his very best at trying to get more information from the actor, as well as asking about his wife Emily Blunt potentially playing Sue Storm in the series. However, that pesky "Marvel dart" came in to ensure Krasinski's lips stayed tightly shut.

Here's the John Krasinski interview about 'Fantastic Four', where the pair also discussed 'The US Office' fan theory that Jim Halpert was the real villain of the series. He is currently working on directing a new children's adventure 'If', starring Ryan Reynolds, Fiona Shaw, Phoebe Waller-Bridge and Steve Carell.

John Krasinski voices Superman in 'DC League of Super-Pets', which is in cinemas this weekend.