In addition to restoring famous scenes in film and television dramas, many netizens imitate stars and celebrities to express their attitudes. The imitator may simply look like a star or imitate a star through makeup techniques, dressing styles, performance content, etc. If the imitator imitates the star's modeling not for commercial purposes, not for profit purposes, or uglifies and belittles the star's personal image, it is not enough to constitute infringement.
However, if the imitation is for the purpose of commercialization, or in the process of imitation, the personal image of the star is vilified and derogated, which leads to confusion or cognitive deviation of the public, it may constitute an infringement on the personality rights of the star, such as the right to name and portrait, and may receive a letter from a lawyer.
The legal basis of whether cos stars will be sent a lawyer's letter when they go to the streets;
Article 38 of the Copyright Law of People's Republic of China (PRC) stipulates that a performer who uses other people's works to perform shall obtain permission from the copyright owner and pay remuneration. Where a performance organizer organizes a performance, it shall obtain the permission of the copyright owner and pay remuneration. However, Article 24 of the Copyright Law also stipulates the use of published works by others or the free performance of published works for personal study, research or appreciation.
The performance does not charge fees to the public, nor does it pay remuneration to the performers, and it is not for profit. A performance may be performed without the permission of the copyright owner, but the name of the author and the title of the work shall be indicated, and it shall not affect the normal use of the work or reasonably damage the legitimate rights and interests of the copyright owner.
Baidu Encyclopedia-People's Republic of China (PRC) Copyright Law