Jobs - - - -- -
Education - Twilight
Technology - Rarity
Military - Rainbow Dash
Economics - Spike
Food ( forgot the posh name for it ) - Pinkie Pie
Environment - AppleJack
Foreign Affairs - Princess Luna
The Monarch - Celestia (obvs.)
The Army - Parasprites / Changeling / Discord / Bassicly All The Bad Animals
The Air Force - The Wonderbolts
The Navy - ( forgot his name but the dude who got his moustache cut off in part 2 in the first season )
National Symbol / Statue - Tom ( The Rock / Diamond )
The Mayor - The Mayor ( -.- )
Musician - DJ PON-3
National Anthem - Smile Smile Smile
I could go on but im not going to add your own if you want to !