Thesy Surface, who stars in “Always Sunny In Philadelphia” has asked police to help her find her stalker who has been sending her crazy emails. According to TMZ, the emails consist of a bloody finger writing a not so nice word that starts with the letter C! The police have traced the emails only to a person’s Tumblr account but have been unable to find out anything else. Read more about Thesy’s stalker after the jump.

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Thesy Surface — the actress who plays the creepy Margaret McPoyle on “Always Sunny in Philadelphia” — has turned to police for help, claiming a stalker’s been harassing her online … even emailing her pics of an animated finger spelling the c-word in blood.

Police obtained a search warrant to investigate the anonymous sender — and have traced the messages back to a Tumblr account by the name of “dirtythesy.”

According to the docs, police successfully retrieved the user’s email address and IP address late last month — and plan to pursue a criminal investigation.

Police believe the mystery person first made contact with Thesy via Twitter — posting a long comment on one of her videos, calling her “ugly and untalented.”

But that was just the beginning — on July 10th, the alleged stalker contacted her again with a Tumblr account that contained several more degrading messages … and a picture with a “vulgar image” superimposed.

Thesy received two identical emails days later with the message “Bloody Finger Mail” — containing a moving image of a finger … inscribing the word “c**t” in blood.

According to the docs, Thesy’s spooked because she thinks the person knows all her personal information — and she has no idea who’s behind the attacks.

Sources close to Thesy tell us, she’s fully cooperating with the LAPD — and hopes they find the person responsible for the messages. Her rep had no official comment.