Greg Douglas is a former Cardiothoracic surgical registrar at Holby City Hospital.

Time at Holby City Hospital

Greg struggles in an operation, Sahira claims that he is an excellent surgeon. She tells Hanssen that she will not be his spy, and does not want special favours from him in return. Hanssen therefore reneges on his promise to allow Sahira to work flexitime. With a consultant position available, Sahira decides to apply, which pits her against Jac. Greg feels that Sahira is taking liberties by arranging her childcare schedule on duty and delegating patient care to him. He suggests that she is incapable of balancing her personal and professional life, but feels guilty when Sahira subsequently struggles in an operation and is berated by Hanssen. On the day of the consultant interviews, Sahira becomes emotionally involved in a patient's plight and misses her interview slot, so Jac is awarded the position by default. Greg later oversteps Sahira to take the lead on the case of a teenage girl with a rare heart condition. He is devastated when she dies in theatre, and breaks Hanssen's windscreen in a drunken accident. Hanssen issues Greg with a formal warning; Sahira sympathises with him, and when he later makes a medical error, she takes the blame and resultant warning herself.

Dismayed that Sahira would tarnish her previously unblemished record for Greg, Hanssen attempts to revive their previously positive working relationship. He offers to remove the warning from her file, and convinces her to join him in an operation she has never performed before, but is forced to call Greg in to assist when she panics in theatre.