Another new addition for 2014, Frankie joined the club from Wakefield Wildcats on a one-year deal, having played for the Wildcats since 2010.
He found himself mostly on the bench in his first season at The Mend-A-Hose Jungle, but his performances still impressed Cas fans, particularly when used as an impact player as an interchange.
He also had a previous spell at Hull KR.
Frankie is proudly sponsored by Dave Cussons Windows and Doors Ltd.
*Photograph courtesy of SWPix.