It's hard for me to imagine people on the other side of the screen so I imagine you as how I might imagine the mysterious Dr. Charles T. Pepper (not the real guy, my fake imagination version)

So... lab coat, perhaps with red accents, undershirt, or tie... glasses, somewhat tall, somewhat lanky. Kinda Milo from Atlantis type energy, but perhaps with darker hair. Maybe the whisperings of a beard...?