|Behind the scenes|
|First episode||"24 Hours"|
|Last episode||And in the End...|
She is one of only six characters to appear in every season of the series. Her appearances were less frequent in the 1997–1998 and 1998–1999 seasons (due to Yvette Freeman appearing in the sitcom "Working").
Haleh is a confident and skilled nurse who at times displays a motherly disposition to the staff.
Not one to be taken for granted or put upon, Haleh stands up for herself and often makes her point with a sharp sardonic wit. She has also sung at both Christmas and Halloween parties in the ER.
In her 35 years at County, she has been Nurse Manager twice over her 35 years at County: in 1997 when Carol Hathaway was home following her suspension from the ER and between 2000 and 2002.
In the 2002 season, she returned with a new appearance after losing 120 pounds, but subsequently gained some of the weight back.
She has been fired for short periods twice: during one episode in season 9 ("Finders Keepers"), she was fired for a few hours by chief of the Emergency Room Robert Romano, but returned when Romano learned that nurses had lots of syndicates to protect them.
In season 12, the new chief nurse Eve Peyton made Samantha Taggart fire Haleh, but she was later rehired when an airplane exploded over the city shortly after takeoff and County was seriously short on nurses. Sam called her in while Eve was away and Eve told her that it was a good move.