Ralph appears as a plain, unclothed android, with smooth off-white skin and two large, open gashes on his face where he has suffered damage too great for his skin to regenerate. His left eye is also damaged, appearing black and mechanical with a dark blue iris and sclera. Ralph almost exclusively refers to himself in the third person. He is distrusting of humans and androids due to his past trauma, and has an energetic personality and mood which can rapidly fluctuate between extremes. 