The two new CCTV screenshots were taken from a route 50 bus in Thornton Heath at 8:30pm on 13 August, just under two hours before the incident took place.
Detective Chief Inspector Jivan Saivb from the local policing team in Lambeth, who is leading the investigation, said: “These images provide a clearer picture of the person we need to identify and locate following this shocking attack. I would urge people to look at these images – do you know this man? Do you recognise the clothes he is wearing?
“If you can help identify him then please get in touch.”
Two men, aged in their 20s and 30s, were standing outside the LGBTQ+ venue when a man approached them and attacked them with a knife before running away.
READ MORE: Two men stabbed in homophobic attack outside nightclub on Clapham High Street
They were both taken to hospital for treatment and have since been discharged.
The incident is being treated as a homophobic attack by the Met and no one has been arrested yet.
“There is no place for hate in London”
Sadiq Khan, the Mayor of London, condemned the “abhorrent” attack.
“The incident in Clapham High Street on Sunday night was abhorrent. It’s a huge relief the victims of this appalling attack are out of hospital, and my thoughts remain with them and their loved ones,” he said in a statement.
“I have always been clear that there is no place for hate in London. I stand with LGBTQI+ Londoners and will do all I can to end hate crime in the capital. My team, along with the Met Police, are supporting and working closely with the LGBTQ+ Venues Forum and its members who will be invited to attend an urgent meeting later this week.”
READ MORE: Sadiq Khan says “there is no place for hate in London” after Clapham stabbings
Anyone with information is asked to contact police on 101 or tweet @MetCC and quote CAD 7198/13Aug.
You can also provide information anonymously to the independent charity Crimestoppers on 0800 555 111.
You can view all of the available images of the suspect below.