You can find your list of Co-authors on your Frontiers profile page, under the Publications tab and Confirmed sub-tab.
You can see the authors linked to the given publications.
On the same tab, you can see the Co-authors’ list on the right hand side column, and you can view them all by clicking on the “View All Co-authors” button:
To show more authors in your publication list, please click on the More button to display a complete list of your co-authors.
You can also view the co-authors’ list by clicking on the Network Tab, then the Co-authors sub-tab: