The accused was remanded in custody to appear again on November 21, where continued name suppression would be one of the things considered.
Judge Bridget Mackintosh said the man had a history of mental health issues.
The man faces two charges of kidnapping, along with threatening to kill or do grievous bodily harm.
The charges relate to an incent on October 5, when two girls walking in Nimon Street were approached by a man.
Police alleged earlier that the man coerced the children into going with them before they ran off and sought help at a nearby house, where the homeowner contacted police.