Writing characters with schizophrenia requires nuance and research. The most authentic portrayals I've seen—like in 'A Beautiful Mind' or 'Hellblade: Senua's Sacrifice'—show it as more than just 'hearing voices.' Key traits include disorganized speech (jumping between topics unpredictably), emotional flatness at times mixed with sudden agitation, and paranoia that feels logically consistent to them.
What fascinates me is how media often misses the negative symptoms—like avolition, where even brushing teeth feels impossible. The best depictions balance hallucinations with mundane struggles, like forgetting to eat because time perception warps. I always recommend creators read first-person accounts from sites like Intervoice to avoid reducing it to a horror trope.