Because you like Danno Williams in Hawaii Five-O

Bookish and socially anxious, Ruby Roundhouse is a teenager turned action heroine. See them in Jumanji.

Sam Weir lives for the simple things in life: watching Saturday Night Live and reading comic books. See them in Freaks and Geeks.

In Ziva David's world, you grow up fast; you don't have a choice. See them in NCIS.

David Rossi may chase serial killers for a living, but he's more interested in what wine pairs well with tonight's parmigiana. See them in Criminal Minds.

Ted Logan wants to party on, but if doesn't get an A+ on his history presentation, he'll flunk out and be sent to a military school in Alaska. See them in Bill & Ted's Excellent Adventure.

Peter Venkman's "research" projects are designed to get undergraduate students to sleep with him. Though it turns out he can bust ghosts. See them in Ghostbusters.

With each reboot, Janet progresses more and becomes capable of human emotions. See them in The Good Place.

Emma Frost's superpower: transforming her body into an unbreakable diamond. See them in X-Men Series.

Ianto Jones' withdrawn nature conceals his emotional pain. See them in Torchwood.

Michael Bluth is the only sane person in a family of eccentrics. At least, that's how he thinks of himself. See them in Arrested Development.

Peter Pevensie shows as much courage as a child king as he did under The Blitz of London. See them in The Chronicles of Narnia.

Protecting his family's name and its power are more important to Tywin Lannister than anything or anyone. See them in Game of Thrones.