Name credited to wrong IMDb profile

Helena: If you were starting from the page for the series "Curfew" (https://www.imdb.com/title/tt30242198/), try starting from the page for the specific episode "Pipe Down" instead (https://www.imdb.com/title/tt31502418/). You will find the cast of the episode listed there. Data such as the cast or crew of a particular episode of a TV series is stored by IMDb at episode level rather than series level. (The series cast and crew page on IMDb displays the compilation of cast and crew taken from all the episode pages of the series -- but that data isn't stored at series level.) I hope this helps. Good luck!