Live Webinar - Audio only panelists are not visible in any attendee view nor the recording

For live webinars, is there a setting for off camera / audio only panelists to show up only has their profile image? For Zoom Meetings, that's a default setting.

For Zoom Webinars, we have panelist speakers who would like to remain anonymous and would only use their profile pic.  Attendees cannot see their profile pic or know who is speaking, making it an awkward experience. As of right now, only panelists who have their cameras on will be visible. I want both (cameras on or cameras off)  panelists visible in gallery / standard view modes. This applies to the recording as well.

Essentially, how do I get audio only panelists to be visible as an icon during live webinars? There seems to be no setting for this.