CHAN CHUN SING
Since his entry to politics in 2011, Mr Chan has developed a reputation for quickly mastering his portfolios and his ability to connect with people on the ground.
Mr Chan's portfolios are significant ones, and complement his time in the Singapore Armed Forces, where he rose to the rank of major-general and was Chief of Army.
He became Acting Minister for Community Development, Youth and Sports in May 2011, a politically important appointment then, given the concerns over rising inequality that the People's Action Party (PAP) had to contend with in that year's general election .
Two years and three months later, he was made full minister, the fastest of his batch to achieve the promotion.
Former Nominated MP Eugene Tan recalls watching Mr Chan in Parliament during the Committee of Supply (COS) debates, the annual Parliament debate over each ministry's Budget. Says Dr Tan: "After one year, he was able to go to COS without referring to his file. That was very impressive."
Mr Chan now holds two important positions: secretary-general of the National Trades Union Congress - that is, labour chief - and People's Association deputy chair.
This means that he has links to two key groups: the trade unions and grassroots organisations.
Within the PAP, he has also been given heavy responsibilities.
Soon after the 2015 general election, he was tapped to head the executive committee of the party's headquarters (HQ), which oversees the administration and coordination of the PAP's activities across its 89 branches. He is also party whip, ensuring the MPs all vote according to the party line so the Government can pass the laws it proposes.
Topping it off, impressively, not to mention important politically, Mr Chan is fluent in three of the four official languages: English, Malay and Mandarin.