Fixing you up, but ignoring source specifics for practicality unless a
GW model is clearly available. Making a guess that you want Tamriel themes.
We've got an orc paladin (heavy armour, sword and shield)
https://www.reapermini.com/OnlineStore/03722/latest/03722
Human cleric (heavy armour shield and mace)
https://www.games-workshop.com/en-GB/Empire-General
https://www.games-workshop.com/en-GB/Empire-Warrior-Priest-with-Hand-Weapon-and-Shield
There are
GW solutions for you. the Freeguilds/Empire general boxset includes plate armour and maces, though I think the warrior priest model fits better for a cleric even though hammer armed. You can convert.
Human fighter (essentially a Roman soldier)
Buy 28mm Romans by the sprue rather than the boxset on ebay. Muktipart kit will make up will other Cyrodiils and you can convert them yourself with greenskin heads as the Empire actively recruits orcs for the legion.
Khajiit rogue (I am aware I can't get the race accurate here so any ranger/assassin/thief would work here)
http://www.reapermini.com/OnlineStore/cat/sku-down/02785
http://www.reapermini.com/OnlineStore/cat/sku-down/02910
Reaper has you covered for catfolk, if barely, but with more on the way after Bones 4. The above will have to do, rthough reaper also sels various cats and you can do a head replacement with a suitable miniature to make your Khajiit.
Elf mage
https://www.games-workshop.com/en-GB/High-Elf-Mage
or
buy Dread Isle set female mage models as single on ebay.