Rules on multiple characters - can I have 2 Gaunt Summoners?

[Slaves]

Are some of the characters unique, and if so I assume we can only field one of that character.  If that is the case how do we know which are unique?

Specifically can I have 2 Gaunt Summoners of Tzeentch?

[Overread]

For some annoying reason GW doesn't put unique onto character warscrolls.

Instead they put it onto the pitched battle profiles tables under the "notes" column. These are found at the end of the Battletome or in the Generals Handbook. For the Gaunt Summoner it is not a unique character and thus you can take as many as you wish up to the leaders limit for the game size. 

[Slaves]

3 minutes ago, Overread said:

For some annoying reason GW doesn't put unique onto character warscrolls.

Instead they put it onto the pitched battle profiles tables under the "notes" column. These are found at the end of the Battletome or in the Generals Handbook. For the Gaunt Summoner it is not a unique character and thus you can take as many as you wish up to the leaders limit for the game size. 

Cool, thanks