It should be noted that Robert performed his own one man type show based on a robot character before he was recruited as the latest and in my opinion definitive* version of Kryten. That was one of the reasons he was chosen. I'm sure he'll hold his own. * No offence to the original actor. To his credit he was in one of the funniest scenes in Red Dwarf history and his performance was no small part of this even if it was focused on three dead undernourished ladies sitting around doing nothing.