How do I model a king with the command pack?

[DiscoStuart]

Hi

I have just taken delivery of the WOTR command pack and I cannot see anyone that looks like a king, what model do I use to mark the king?

I have noticed there are 15mm figures made by other companies that have character figs do people use those even though they are slightly larger scale?

I am new to 12mm so all the advice I can get is welcome!

Regards

Disco