*Jennifer "Jen" Larkin is one of the main characters of the animated series, she is Andy's older sister

She loves chocolate, and Andy thinks it's because she's a girl.

She is easily the grumpiest in the Larkin clan.

Andy calls her a "drama queen", and she can be quite dramatic.

A snarky teenage girl.

Typically in harsh tsun mode, but Craig brings out the sweet in her when she tries to woo him. Of course since Craig is also a Dumb Jock, he tends to earn Jen's ire whenever he does something she doesn't like.*