Police said the man was a possible person of interest in the disappearance of Eve Askew.

The 14-year-old's case was reopened late last month, after a 2001 investigation failed to turn up any useful information.

Eve went missing from her family home at Gordon River Road, Fitzgerald, on November 16, 1991.

It is believed she had a fight with her parents Helen and Jim Askew before her disappearance.

She then left a note indicating her intention to leave home after being grounded by her parents because of smoking.

At the time of Eve's disappearance she was 157 centimetres tall, of slim build, had red hair and was of fair complexion with freckles.

She was wearing a distinctive tracksuit.

Her parents died in 1996 following a car accident at Granton.

Tasmania Police encourage anyone with information about Eve Askew or who know the identity of the man in the identikit image to contact them.

A $100,000 reward is being offered for relevant information that results in the conviction of an offender and/or leads to the whereabouts of Eve.

The direct line to investigators is 0418 589 544.