What are some jobs that help people who are mentally ill?

Jobs that help those with anything from amnesia to bi polar disorder to dissociative disorder, schizophrenia. But not like a job that works with special needs children. And, what classes should be taken in college to get these jobs?What are some jobs that help people who are mentally ill?
in a mental hospital they have many different types of therapists i.e. movement,art, drama,systemic,behavioural etc therefore i would definitely suggest therapy

they also have nurses that give out medication, control the patients as well as look after them however they also need psychology training therefore i would suggest psychology

they are psychiatrists as well as consultants.