Christa is the oldest of the new residents in the Angels Memorial ER. A former soccer mom whose young son died of cancer, Christa became an expert on everything there was to learn about the disease. After her son's death and resulting failed marriage, Christa resolved to return to school and become a doctor. Christa's intuition and life experience serve her extremely well in her practice. Her dedication and follow-through are unprecedented. She is always going above and beyond to attend to her patients' emotional needs, as well as their medical ones. Sometimes she goes too far—which becomes a source of conflict with Leanne, who is constantly warning Christa to check her emotions at the door. But Christa can’t help it; she wears her heart on her sleeve. She feels a strong connection to Leanne, as she knows they share similarly painful pasts. In the Angels ER, Christa certainly learns from Leanne—but Christa senses (or at least hopes) that Leanne may be learning a little from her, too.