Popsugar Entertainment Mad Men Mad Men Characters Then and Now Where the Mad Men Characters Began and Where They End Up May 20, 2015 by Shannon Vestal Robson View On One Page Photo 21 of 26 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 21 Glen Bishop Then Glen (Marten Holden Weiner) is the young neighbor boy who becomes friends with Sally and, oddly, a confidant to Betty. Previous Next Start Slideshow Mad MenTV