Javascript Client Object Model / REST API help with people field

Hi,

I have a SharePoint list which has a "Title" field as the first column and a "People" field as the second column. Now I want to dynamically build HTML like so:

<a href="mailto:userid1, userid2">mail all users</a>

Is this possible with JSOM or REST API. Or through a manually initiated workflow triggered through List view Custom Action?

Please help.

techie