3. LT. COMMANDER DATA

FROM Star Trek: Generations (1994), Star Trek: First Contact (1996), Star Trek: Insurrection (1998), and Star Trek: Nemesis (2002)

PLAYED BY Brent Spiner

PROGRAMMING A twist on Mr. Spock from the original Trek, Data is an efficient science officer aboard the Enterprise — but he's also an android who yearns to experience human emotion.

SPECIAL FEATURES In Generations, Data installs a chip that enables him to feel everything from fear to glee.

MEMORABLE LINE (In Generations, recalling a joke he'd been told seven years earlier) ''I get it! 'The clown can stay, but the Ferengi in the gorilla suit has to leave!' I get it!''

WHY HE PUSHES OUR BUTTONS Like many of the best robot characters, Data makes us wonder what it really means to be human.

EW MOVIE GRADES: B (Generations); B+ (First Contact); C (Insurrection); B- (Nemesis)