plagiariser (noun)

1. The plagiariser used the ideas from a famous science fiction novel and claimed them as his own in his new book.

2. The writer was accused of being a plagiariser after it was discovered that the plot of his bestselling novel was taken from a lesser-known literature classic.

3. The cartoonist was revealed to be a plagiariser when it was found that he had copied the characters and storyline from a popular animated series.

4. The filmmaker was exposed as a plagiariser when it was discovered that entire scenes from his movie were taken from foreign films without permission.