Theo is very shy, extremely cautious and awkward. He has an unusual experimental drive system that doesn't always run very smoothly and he makes sudden jolts forward or back when his rods or cogs jam. He finds it particularly difficult when going in reverse. This of course only undermines Theo's confidence and he firmly believes that he can't do anything, although this is not actually true. Theo is quiet and thoughtful, but when he speaks he is often direct and to the point, sometimes even blunt. He just says what's on his mind, and it's usually not the most optimistic of thoughts. But Theo is genuinely kind and caring. He would just like to keep himself and his friends as safe as possible so they can hide away and have a quiet life.