Corrected entry: There has only been one charcter that has been in every episode, and that is Emma Nelson (Miriam McDonald).
Degrassi: The Next Generation (2001)
1 corrected entry
Starring: Melinda Shankar, A.J. Saudin, Aislinn Paul, Stefan Brogren
Continuity mistake: When Emma gets into Jay's car for the first time, she has random braids in her hair. When she gets home and is talking to her parents, she has no braids. When she goes to the ravine, she has braids again.
Clare Edwards: What are you doing here?
Eli Goldsworthy: Hi Eli, how are you? Fine Clare thanks for asking.
Clare Edwards: Hi.
Trivia: Adam is the first scripted trans-gender teen character in television history (not including documentaries or one-time guest roles).
Correction: This is not true; I have watched episodes in which she is not featured.