The Ravens filled out their practice squad with three previously reported roster moves on Monday.
The team added quarterback Dennis Dixon, linebacker Adrian Hamilton and defensive back Anthony Levine.
Dixon, 27, spent his first four seasons with the Pittsburgh Steelers. He played in four games and started three during his time in Pittsburgh.
The Ravens had Dixon in for a workout earlier this offseason, but ended up signing veteran Curtis Painter instead. The team cut Painter on Friday, opening the door for Dixon to come to Baltimore.
Hamilton, 24, was an undrafted rookie who spent training camp with the Dallas Cowboys. The talented pass rusher notched 20 1/2 sacks last season at Prairie View A&M, and he gives the Ravens some much-needed depth at outside linebacker.
Levine, 25, went undrafted out of Tennessee State and has spent the last two seasons on the Green Bay Packers practice squad.