Carl Destoop (De twaalf)

De Twaalf is a Dutch-language Belgian television series.

Juliette Destoop
Canon status: the character is explicitly stated to be autistic (receives a diagnosis in-series)

Involvement of autistic people: it is not known what kind of research the makers of the series did and whether or not autistic people were involved

Carl Destoop
Canon status: is never explicitly referred to as autistic, but it is heavily implied. The actor also confirms this in an interview.

Involvement of autistic people: it is not known what kind of research the makers of the series did and whether or not autistic people were involved