Rhonda is a friend of Luke and Manny.
In "iSpy, she, Luke, Manny and some other friends of theirs (mostly boys) make a movie about zombies.
In "Spring-a-Ding-Fling", Luke has a date with Rhonda for the spring dance in their High School. Claire wants to help him to score with her, so she helps Rhonda to dress more like a girl and be beautiful, as she always wears very dirty and manly clothes. Luke is not really happy with that because he preferred her the way she was and asks Claire to "fix" her. However, the two are later seen dancing together, so he may really like the new Rhonda.