Marcia Mikhael was in good spirits on Wednesday as she recovered in hospital from a gunshot wound to the leg suffered in the final moments of the siege.

The 43-year-old mother of three from Glenwood in Sydney's north west was among a confirmed 18 people taken hostage by gunman Man Haron Monis on Monday morning.

In a statement the Westpac worker's husband George Mikhael thanked the public for their support and expressed condolences to the families of barrister Katrina Dawson and cafe manager Tori Johnson, who died in the melee.

"On behalf of my dear wife Marcia and our family, I would like to take this opportunity to extend our gratitude and appreciation to all those who have offered their prayers, thoughts and well wishes during this trying time," the statement read.

"We are extremely grateful to have our cherished Marcia safe with us again and, while she embarks on the initial stages of recovery from these tragic events, she remains in good spirits.

"Our family wishes to extend our sincere condolences to the families of the two victims, Katrina Dawson and Tori Johnson. We wish them strength and peace during this difficult time.

"We would like to take this opportunity to formally thank all members of the police force, ambulance and other officials who were involved in the rescue effort. They showed tremendous strength, courage and resilience during such a difficult time. They are all heroes in our eyes.

"To our family, friends, and the Australian community, we are overwhelmed by the love and support you have given us during this difficult time. It is greatly appreciated. It is through these difficult times that our bond grows stronger."

Hostage John O'Brien also spoke of his sorrow at the bloodshed, paying tribute to the families of Ms Dawson and Mr Johnson.

"I offer my heartfelt condolences to their friends and family," he said. "My thoughts and prayers are also with my fellow hostages and everyone affected by this terrible event as we all come to terms with it."

Mr O'Brien would not go into details of his ordeal while police continued their investigation.

The Maroubra retiree visited the city on Monday morning for an annual appointment with his eye doctor. Afterwards he stopped off for his yearly ritual, a cup of coffee at the Lindt Cafe, a decision that left him trapped.

The 82-year-old was one of the first to escape the cafe, making a bolt for freedom with barrister Stefan Balafoutis at 3.45pm, six hours into the siege. The pair were followed by cafe supervisor Paolo Vassallo, a married father of three.

Elly Chen and her Lindt Cafe co-worker Ji-eun Bae are both recuperating at home after fleeing the cafe at 5pm on Monday.

Pregnant barrister Julie Taylor, who was at the cafe with Ms Dawson, was released from hospital early on Tuesday morning and is recovering at her Randwick home, supported by her husband and extended family.

Mother and daughter Robyn and Louisa Hope remain in hospital, where they are being treated for gunshot wounds.

Lindt Cafe worker Harriette Denny, 30, wept as she visited Martin Place on Wednesday with her father Robert Denny, saying she was still too traumatised to speak about the tragedy.