Former Salford and Wakefield centre or second rower Jason Walton has become the first confirmed departure from the old Bradford club.
The 26-year-old Walton, who left Wakefield at the end of last season to join the Bulls on a two-year contract, has signed an initial 12-month deal with Featherstone.
Walton, who became a free agent on Tuesday when Bradford went into liquidation, said: "It has all happened very fast. I was 90 per cent sure the Bulls were going to survive, we were told a new owner was coming in.
"That is in the past now, though, and I am very happy to be joining Featherstone. This is a club I have always wanted to play for and am confident I can do well here."
Featherstone head coach Jon Sharp said: "First and foremost it is a shame what has happened to Bradford and one of the casualties is that players find themselves out of work.
"Jason is one of them and he finds himself looking for another club. We were able to move quickly and we are thrilled to have him here."
Forward Tom Olbison has also left the Bulls, joining Widnes for the 2017 season, with an option to extend the deal until 2018.
Widnes coach Denis Betts said: "We are bringing in a lad who is really desperate to get back into Super League. He's at a really good age, really durable and will certainly enhance our squad.
"He will be pushing for a starting spot in the back row, putting pressure on that position, an area of our squad which I thought we needed to strengthen."
Olbison said: "I'm buzzing and I can't wait to get started with the club. I've had a couple of years in the Championship and I wanted to get back into Super League as soon as I could so to be given this opportunity with Widnes Vikings is massive for me."