Carla's sleazy first husband, Nick Tortelli(Dan Hedaya),
also made appearances, variously challenging Carla with a custody battle or a legal scam stemming from their divorce.
The"upper class"- represented by characters like Diane Chambers, Frasier Crane and Lilith Sternin- rubbed shoulders with middle and working-class characters- Sam Malone,
Carla Tortelli, Norm Peterson and Cliff Clavin.