Cole Hauser

Pratt struggles to diagnose a woman who suffers mysterious chronic seizures. An attractive woman, Campbell (Ashley Laurence), informally accuses flirtatious Pratt of sexual harassment. Abby ponders how to get her contentious patients' attention during her psychiatric department rotation. And Neela studies strokes in a lab populated by brainy but bizarre graduate students. Meanwhile, Sam tries to resist the appeal of her son's "reformed" father, Steve (recurring guest star Cole Hauser), when he temporarily moves into her apartment--making Kovac concerned. In addition, Weaver vows to fight for her baby son, and Chen is tested when she brings her combative, ailing father home.

When Carter suspects a problem, he rushes his pregnant girlfriend, Kem (recurring guest star Thandie Newton), to the emergency room. Corday gets a jolt from the past when the late Greene's teen daughter, Rachel (recurring guest star Hallee Hirsh), shows up with her boyfriend, looking for a haven--and some "morning-after" pills. Meanwhile, Neela prepares for her medical school graduation by welcoming 20 family members, and Abby--who hasn't passed the boards (state medical licensing written exam) yet--prefers not to attend. Neela and Pratt seek out an overweight teenager whose blood pressure could indicate deadly heart disease. Sam is uneasy about her son's father, Steve (recurring guest star Cole Hauser), moving back to her apartment, and Frank (recurring guest star Troy Evans - "China Beach") loudly returns to work after recovering from his heart attack.

In the season finale, Good Samaritan Kovac helps a stranded female motorist and her young son who then get struck and gravely injured by a car--forcing the doctor to use all of his skills to keep them alive until specialists can operate on them at the hospital. Abby waits for her medical board results and treats a curmudgeon, Richard Gould (Bill Macy - "Maude"), who feels forgotten by the hundreds of students he taught. Meanwhile, pensive Neela leaves for the University of Michigan to begin her internship; Chen's co-workers worry about her bruised face; Pratt treats a young heart patient, Elgin Gibbs (James Earl), but remains disdainful toward his gang-member patient, Antwan Coles (Sam Sarpong - "Love Don't Cost a Thing"); Weaver hopes to gain custody of her son; and Sam takes action when it appears that Steve (recurring guest star Cole Hauser) isn't leaving, and she worries about his negative influence on their impressionable son.