The tweet from "bwayanonymous" stated, "Which Avenue Q cast member gave Marty Thomas crabs?"

Thomas' lawsuit says that the posting was "malicious and false" and was seen by countless individuals. "The statement was first brought to my attention by an actress who I worked with in the past and also by a casting director who hired me in the past," Thomas continues. "Clearly, there is no doubt that other people in the Broadway community saw and were affected by the statement."

In the filing Thomas says, "I do not suffer from, nor have I ever suffered from, a sexually transmitted disease." The actor says that the tweet "negatively impacts my reputation and negatively reflects on my business as a professional actor."

Thomas is asking the court to reveal the identity of "bwayanonymous" so he can take proper legal action.

Thomas told the Post, "If it's an opinion about my career, my talent, my personality, I could care less. My skin is thicker than that."

Prior to the filing of papers, the Twitter feed of "bwayanonymous" had been removed.

Marty Thomas has appeared on Broadway in Xanadu, The Secret Garden and Wicked. He is a Grammy-nominated recording artist who was named the 1992 Junior Vocalist champion on the original "Star Search" series. His self-titled solo CD is now available.