Is there a quick way to search for a given researcher's past collaborators/co-authors? Is there a website or software for one to search for all the past co-authors/collaborators of a given researcher?

I can of course go through the researcher's publication and get the names one by one, but just wonder if there is a shortcut way of doing this.
For researchers in computer science, another approach is to use DBLP, which is free. For example, this is the coauthor list for me on my DBLP page. It is reached by going to the researcher page at DBLP, and then clicking the little 'people' icon on the right hand side.