The 20-year-old joins from Sheffield Steeldogs, where he played 50 times last season, culminating in winning the NIHL Play-off Championship.
Henry played his junior career with the Telford and progressed to Tigers 2 and Tigers 1 before moving to Solihull Barons in 2019.
Tigers head coach and general manager Tom Watkins said: “I’m delighted to add Henry to the roster. When he came available it was a signing that makes complete sense.
He lives in Telford, he is a player I know very well having coached him throughout his junior career, winning a National Under 18 championship with Telford, he rejoins several of those players in this current Tigers roster.
“This ticks a lot of boxes for us with Jonathan Weaver currently unavailable, long-term injury to Deakan Fielder and having had Nick Oliver out.”