The setting and atmosphere of two dramas are alike. Both contains action scenes and involved large company frauds. In "Healer", the male lead hides his real identity and pretend as someone to get the job done. In "Are You Human Too", a robot pretends to be the chaebol who is in a comatose to save his inheritance. Both use likely high technology equipment / gadgets in their mission.

Both drama stars Gong Seung Yeon. "Circle" presents an alien and "Are You Human Too" presents robot. Other similarities include a more serious approach to sci-fi which is very unique to Kdramas and the cloning subject.