In the episode Close Rick-Counters of the Rick Kind, Summer and her family were sitting around the table, eating breakfast, when all of a sudden, Evil Rick and Evil Morty opened a portal, walked into the room, and shot her grandfather Rick as well as tranquilizing her brother Morty and taking the boy with them, leaving Summer, screaming at the top of her lungs, being completely terrified and having no idea what to do, along with her parents.
Summer is a teenage-girl of average height and a thin build. She has a light skin-tone, and shoulder-length light brown hair. Her facial features take after Jerry's, having an oval head and pointed nose.
Her most common outfit has been a magenta tank-top, white capri-pants, and black slip-ons. She usually has her hair pulled back in a high ponytail.
Summer has some personality traits of a typical American teenager. She wishes to be popular among her peers, and finds the antics of her family to be dysfunctional; she genuinely cares about them, however. She's very attached to her phone and social media, taking videos of her dog Snuffles when he became super-smart, and shuddering at the thought of her father Jerry joining Facebook.