Final answer:
The role of the author in a professional environment can be fulfilled by the playwright, technical writers, and contributors like editors and illustrators.
Step-by-step explanation:
In a professional environment, the role of the author could be given to the playwright, who is the author of the script. Additionally, technical writers are also considered authors as they write technical documents and manuals. Moreover, contributors such as editors, illustrators, and translators can also be considered authors in their respective roles.