Charles Norbert "Chaz" Finster is a Widower; Chuckie's father, from whom he inherited his adenoidal whine. Married Kira in the second Rugrats movie. Kimi's stepfather. Runs the Java Lava Coffee House with Betty.
Chaz is Chuckie's father, Kira's new husband, and Kimi's step-father. Like his son, Chas also has his adenoidal whine and also seems to suffer from many types of allergies and appears to have asthma. While he tends to be timid and quiet and a bit whimpy like Howard, he has much more of a speaking role. He tries to be brave, like his son does, but unlike Chuckie, does not have a fear of clowns. In fact, he and Howard used to dress up like clowns in college to make a bit of spending money, as revealed in the episode "Angelica's Birthday." Like Didi, Chas follows up on the advice of Lipshitz with caring for Chuckie. However unlike Didi, he tries doing things his own way at times. One example could be in "Down the Drain" when he uses a record and his two sock puppets to try and convince Chuckie and Tommy that they don't have to be scared about taking a bath. Despite his allergies, Chas does have a garden and a greenhouse, he's working on.