All questions / The brand, the channel and Captain Sifr C10 Is Captain Sifr a real person? No — a plush turtle, our mascot. Nils is the person who turns up for the training. More questions on this topic Why Channel Zero? Why radio? Does channel 0 even exist? Isn’t a radio set a silly image? What do the three call levels mean? I am calling Mental Mayday and my competition is next week. What is still possible? Isn’t Mental Mayday disrespectful towards real distress at sea? All questions