1st and 2nd man from top row left
— Myuran Sukumaran, 34, and Andrew Chan, 31, Australia, arrested in 2005 for attempting to smuggle more than 8 kilograms (18 pounds) of heroin to Australia as part of a group dubbed the Bali Nine.

3rd man from top row
— Okwudili Oyatanze, 45, Nigeria, arrested in 2001 on arrival at Jakarta airport from Pakistan with about 2.5 kilograms (5.5 pounds) of heroin.

4th man from top row right.
— Martin Anderson, 50, Nigeria, arrested in Jakarta in 2003 with 50 grams (1.8 ounces) of heroin.

5th man from the bottom left
-Jamiu Owolabi Abashin, 50, Nigeria, arrested in 1998 at Surabaya airport with about 5 kilograms (11 pounds) of heroin. He was originally sentenced to life in prison, which was reduced to 20 years by the High Court, then changed to death by the Supreme Court on appeal by prosecutors.

6th man from bottom left
— Sylvester Obiekwe Nwolise, 49, Nigeria, arrested in 2003 on arrival at Jakarta airport from Pakistan with 1.2 kilograms (2.6 pounds) of heroin.

7th man from bottom
— Rodrigo Gularte, 42, Brazil, arrested in 2004 on arrival at Jakarta airport with about 6 kilograms (13 pounds) of cocaine hidden in several surfboards.

Last man from bottom right
— Zainal Abidin bin Mahmud Badarudin, 50, Indonesia, arrested at his home in 2000 with about 59 kilograms (130 pounds) of marijuana.


Source: http://news.yahoo.com/profiles-9-drug-traffickers-executed-indonesia-010445269.html

And http://www.theguardian.com/world/2015/apr/29/bali-nine-who-are-the-nine-people-being-executed-by-indonesia#img-1