Henry Jennings

Henry is the younger Jennings kid, more absorbed in video games and computers than in whatever tension is humming through his house. He's easygoing, a little overlooked next to his sister Paige, and utterly convinced his parents are exactly the travel-agent couple they appear to be.

His obliviousness is the show's cruelest joke and its quiet heart — every scene with Henry is shadowed by what he doesn't know. Keidrich Sellati plays him with unforced, ordinary-kid warmth, never winking at the audience, which makes his innocence feel real rather than a device.