The actress, who played Jane Andrews Mancini, sister to Laura Leighton's Sydney Andrews, will guest star in at least one episode of the series reboot.
Josie joins previously-announced original castmates Laura Leighton
and Thomas Calabro as well as newcomers Ashlee Simpson-Wentz, Katie Cassidy and Michael Rady.
Fans of the series had hoped original cast member Heather Locklear would return as advertising power-executive Amanda Woodward, but as previously reported on Access Hollywood.com, a rep for the actress confirmed she would not be taking part in the series reboot.
The new "Melrose Place" is slated to debut in the fall on the CW.
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