Ross Kenry O'Donovan (born 17 June 1987), also known as RubberNinja, is an Australian animator, voice actor, and Internet personality. He is known for his solo work as a Twitch streamer, as well as his YouTube and Newgrounds cartoons and animations. He co-hosted the internet show Steam Train, a spin-off of YouTube Let's Play webseries Game Grumps.
Sam Chui Kai-Sing (Chinese: 崔佳星), (born 7 November 1980) is a Chinese-Australian aviation and travel vlogger, photographer, and author. He has authored four books including Air1, Air2, Air 3 and Air747. Sam Chui is also a YouTube content creator with over two million subscribers and member of the famous blogger list. He currently lives in Dubai, UAE.