Marlene Castro was 33 when she was last seen in Denton, Texas, on May 26, 2008. Her disappearance is listed with the National Center for Missing & Exploited Children under case number R0807008 and remains an open missing person investigation.

Details about her last known whereabouts or activities that day have not been widely published. Denton-area law enforcement has followed up on leads over the years and her information is entered in national missing persons databases to keep it available to agencies across the country. There has been no significant public breakthrough reported in resolving what happened to her.

If anyone has information about Marlene Castro or remembers seeing her around May 26, 2008, please contact the Denton authorities with even small details that could help the investigation.