Gertrude Yorkes, is a fictional superhero appearing in American comic books published by Marvel Comics. She was created by author Brian K. Vaughan and artist Adrian Alphona, and debuted in Runaways #1 with most of the other main characters. Like every member of the original Runaways, she is the daughter of evil villains with special abilities; in Gert's case, time-travellers. Gertrude, often called "Gert" for short, is often regarded as the most "book-smart" of the Runaways yet also the most sarcastic and cynical. She has socialist leanings and is ethnically Jewish but spiritually agnostic. Gert is known for her sarcastic one-liners, glasses, and purple-dyed hair. She stands at a rough height of 5'1" and weighs 125 lb (57 kg).

"Reunion" is the pilot and first episode of the American television series Runaways, based on Marvel Comics superhero team of the same name. It is set in the Marvel Cinematic Universe (MCU), sharing continuity with the films and other television series of the franchise. The pilot was written by series creators Josh Schwartz and Stephanie Savage, with Brett Morgen directing.