[The mental illnesses each Pasta/Proxy has]
Jeff the Killer - Bipolar Depression, PTSD, Insomnia
Laughing Jack - (extreme) Psychosis, PTSD, Persistent Depression
Eyeless Jack - Chronic Anxiety, Manic Depression
Slenderman - Psychopathy
Zalgo - Psychopathy
Jane the Killer - OCD, PTSD
Clockwork - PTSD, Bulimia, Insomnia
Sally - PTSD
Jay Merrick - Insomnia, Persistent Depression
Alex Kralie - Bipolar Depression, Acute Stress Disorder
Tim Wright // Masky - Schizophrenia, Psychosis, Persistent Depression, Chronic Anxiety
Brian Haight // Hoodie - Generalized Anxiety Disorder, Manic Depression, Psychosis
Helen - Bipolar Disorder
Puppeteer - Psychopathy, Narcissism
Homicidal Liu - Borderline Personality Disorder, Persistent Depression
BenDROWNED - Psychopathy, Narcissism, Chronic Anxiety
Kagekao - OCD, Generalized Anxiety Disorder
Ticci Toby - ADHD, Manic Depression, OCD, Psychosis (plus CIPA but that's not a mental illness)