Alien’s Sigourney Weaver turned up in Doc Martin and people couldn’t believe it

As TV cameos go, Sigourney Weaver popping up in ITV’s Doc Martin is up with there with the weirdest.

The Alien star appeared in Martin Clune’s comedy series about a brilliant surgeon who moves to a sleepy Cornish village after he develops a fear of blood.

He’s probably not a fan of Alien then.

Sigourney played an American tourist Beth Traywick who stops by the Doc’s practice to get treatment while on her travels.

Needless to say, Twitter was stupefied.

Check out the Tweets HERE at the Metro site.