Well basically the requirement for the job mime is level 8 chemist, level 8 beginner knight, level 5 summoner, level 5 mediator, level 5 geomancer and level 5 lancer. They can equip nothing & unable to have any support ability except for their innate 'Mimic'.

Mime can only mimic own party's acts, simply means Mime will mimic everything that his/her allies did regardless after or before he/she acts. E.g. of AT:

1. Ramza (accumulate)
2. Mime (accumulate)
3. Enemy chocobo
4. Orlandu (Holy explosion)
5. Mime (Holy explosion)
6. Agrias (pheonix down)
7. Mime (phoenix down)
8. Enemy goblin1
9. Enemy goblin2
10. Mime (wait) (his/ her actual turn)
11. Beowulf (chicken)
12. Mime (chicken)
13. Enemy red panther
and the list goes on & on & on...

Frankly saying it is NOT WORTH getting one for mime is difficult to control from doing nonsense stuffs during battle. You can't really help it! Once, I moved Cloud near to my dead ally & used phoenix down on the poor fella. Then this mime mimics Cloud & used phoenix down on a dead enemy (a HYUDRA!) in front of her! (Yes, my mime is a generic she...) It really annoys me...

However if you are really good at controlling them then they are unstoppable. Oh yes, their physical attacks are awesome!