executive producernoun [ C ]
uk/ɪɡˌzek.jə.tɪv prəˈdʒuː.sər//ɪɡˌzek.jə.t̬ɪv prəˈduː.sɚ/a person who is in charge of a TV series and has control over creative and management decisions that relate to it:
J.J. Abrams was the creator and executive producer of "Lost".
Synonym
showrunner
a person who is in charge of the making of a film, with responsibility for its financing (= how it is paid for):
"The Aviator" was DiCaprio's first star vehicle as an executive producer.