Portal - The Underground / Episode 2: Protocol Core

Portal 2 Animated Series. 2021 Remaster, original episode released in 2011 Huge thank you for Gregory Holgate aka ’The Stupendium’ for providing the new voice of the Interview Core! Gregory Holgate ’The Stupendium’ Channel: And the ever talented Harry Callaghan as the voice of The Mainframe Harry Callaghan ’Harry101UK’ Channel: Thank you for your patience as we go through uploading the original episodes, we want to make these episodes as good as they can be and future-proof the show moving forward, thanks for supporting the series!