|Portrayed by||Marten Holden Weiner|
|First appearance||"Ladies Room"|
|Parent(s)|| Helen Bishop (Mother)|
Dan Bishop (Father)
Glen Bishop is the son of Helen Bishop.
Because the babysitter had canceled, Helen begs Betty to keep an eye on her son, Glen, while she heads to the Kennedy headquarters. Compared to the Draper residence, Helen's house is a mess.
Betty has Glen watch TV, while she heads off to the bathroom, and as soon as she sits down she is interrupted by Glen, who stands at the doorway and watches her. She yells at him, and closes the door. He is upset and cries and apologizes. She accepts his apology. Later, he asks her for a piece of her hair, which she cuts off a small lock and gives it to him.
Helen later finds Betty's hair in her son Glen's treasure box. This leads to a supermarket confrontation during which Betty slaps Helen in full view of other shoppers.
Betty sees Glen in the passenger seat of his mother's car, parked at the bank. He tells her that he's not supposed to talk to her. She responds by confiding in him, saying: "I can't talk to anyone. I'm so sad." He reaches his hand up to her and tells her that he wishes he were older.
Later, Glen runs away from home and camps out in the Draper's backyard playhouse. A few days later Betty discovers him, brings him into the house and lets him shower. Afterwards, Glen takes Betty's hand, saying, "I came to rescue you. I have money." Glen suggets that they flee together. Betty realizes she has to call Helen. When he realizes her betrayal, he lashes out, shouting that he hates her.
In late 1964, while Henry Francis, Betty, Bobby and Sally are shopping for a Christmas tree, Sally runs into Glen, who is working at the Christmas tree lot. He shows her a pocket knife attached to a woven lanyard that he made, and tells her that he will call later. After Sally tells him that she hates it at home, he uses this as a cue to break into the Draper residence with a few friends and trash the place, leaving Sally's room untouched. Sally finds his lanyard on her pillow and smiles.
Sally talked to Glen in her free time, on occasion he would offer her cigarettes and Coca Cola. One day Betty saw both of them walking together into the wooded area they hung out in, and confronted her. Glen runs away rather than have another confrontation.
While the Draper's residence is being packed up as Betty moves in with Henry Francis, Glen visited to say goodbye. Carla was not sure if she should let him visit, but allowed it. Glen said farewell to Sally in her room, telling her that in a few years he would be old enough to visit her. On his way out Betty arrived home, and the two ended up in a verbal confrontation. After getting yelling at, Glen responds by saying that just because Betty was sad didn't mean everyone had to be, and left. Betty later fires Carla for allowing Glen in.
In 1967, Glen is at boarding school, and still stays in contact by phone with Sally. During one Monday, he sneaks off from boarding school by train to spend a day with Sally (who is at Megan and Don's apartment) at the Museum of Natural History, where Sally runs off unknown to Glen. Glen then goes to the apartment, staying there with Megan until Don drives him back to the school.
- Glen´s birth year is 1951 because he is 9 years old in 1960.