Happy Birthday Mariska Hargitay: The Many Faces of Olivia Benson

This look can be identified fairly easily. Do you think the picture on your TV has frozen? Wait a second. Olivia just wants you to understand how shocked and horrified she really is. She's committed to this expression. Normally reserved for a co-worker, not a perp, to express they aren't as concerned by the tragic situation as she is.

This look normally means she's just discovered your mother is really your grandmother is really a drug dealer is really the one who killed your boyfriend, but she doesn't want to upset you. Her face says, we missed our last flight while her words say, you are going to be in serious therapy until the end of time.

She's appalled you're such a creep, and she doesn't want your creep cooties all over her. She's going to berate you for your violence against woman and parrots fetish over here, far away from you.

It might be just one victim in front of her, but suddenly a decades worth pile up on her face. Her job is so sad and she just can't take it anymore. That's why she had to get bangs in a later season. To try to mask some of the sadness.

Again, do not adjust your TV. Olivia isn't talking about it, and she won't for a while. This is just too big, man. She needs to take it in. Don't worry, Munch will fill in some chatter.

There's not exactly proof that you committed the horrible, unspeakable crime, but Olivia has a feeling your hands are dirty. And she's going to glare at you disapprovingly until you give up a full confession, or Elliot starts beating you up.

Every once and while, Olivia finds herself in a situation that's just plain scarey, and she's really good at letting her eyes scream in terror.