Marques Brownlee, also known as MKBHD, is a YouTuber, best known for his technology-focused videos. He is a professional ultimate player with New York Empire of the AUDL (American Ultimate Disc League).
He appeared as a guest on the Joe Rogan Experience to talk mostly tech, but also talks about ultimate!
https://www.youtube.com/watch?v=QSGaMUBC4Mc
Ultimate talk starts around 1 hr 21′.