Break-Up Rumors, Is Iain De Caestecker Single Again?

  • By Zach Selby
  • Edinburgh
  • Last updated on

Is the 38-year-old actor officially back on the market?

Are celebrities more likely to divorce or break up? Earlier this week news reports surfaced that Iain De Caestecker, 38, and his partner had split up. Is the actor best known for his roles in Lost River or Agents of S.H.I.E.L.D. really single again?

UPDATE 17/03/2026 : This story seems to be false. (read more)

De Caestecker spotted alone

A fan spotted Iain De Caestecker walking alone, probably coming back from picking up his mail at the end of his several mile long driveway, on the afternoon of March 15, 2026. Was he all alone? “Definitely yes,” says the fan, adding that “He was wearing a large sweater and looked really cute!”

Is Iain back on the market?

A rep for Iain De Caestecker was not immediately available for comment.

Truth or rumor, when news that the actor was splitting hit the internet Monday (March 16), Twitter immediately exploded with pithy commentary. It seems everyone had an opinion on the matter:

“Has anyone Iain’s phone number?”
— Michelle Whedon (@mimiwhedon) March 16, 2026
“So very sad… Those 2 were so great as a couple. So cute together.”
— Crystal (@crystal_clear) March 16, 2026

Based on the facts (De Caestecker spotted alone with a cute sweater), is there trouble in paradise or is it much ado about nothing?

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