Timothy Olyphant is frequently cited as the standout performer, providing a grounded adult presence. While Alex Pettyfer and Dianna Agron are visually well-cast for the "teen heartthrob" demographic, some reviewers felt their romantic subplots were formulaic and lacked deep chemistry. Pacing & Writing:

John Smith (Alex Pettyfer) is an alien from the planet Lorien, hiding on Earth from the Mogadorians, a hostile race that destroyed his home.

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Timothy Olyphant is frequently cited as the standout performer, providing a grounded adult presence. While Alex Pettyfer and Dianna Agron are visually well-cast for the "teen heartthrob" demographic, some reviewers felt their romantic subplots were formulaic and lacked deep chemistry. Pacing & Writing:

John Smith (Alex Pettyfer) is an alien from the planet Lorien, hiding on Earth from the Mogadorians, a hostile race that destroyed his home.