Prop Marc Thomas and full-back and winger Melani Nanai are among eight more players leaving Worcester at the end of the 2021-22 season.
Back-row forward Caleb Montgomery, tighthead prop Joe Morris and lock James Scott are the other senior players departing.
Thomas made 26 appearances for the Warriors after signing in 2020.
New boss Steve Diamond has promised to revamp the squad with seven new signings already confirmed.
WORCESTER WARRIORS NEW SIGNINGS:
#1&2. Curtis Langdon and Cameron Neild from Sale Sharks
Diamond made Sale Sharks pair Curtis Langdon and Cameron Neild his first signings for Warriors for the 2022/23 season.
England international hooker Langdon and back-row forward Neild both worked under Diamond during his successful ten-year stint as Sale’s Director of Rugby and will link up again with him at Sixways.
#3&4.Fergus Lee-Warner and Santiago Medrano from Western Force
Medrano will arrive at Sixways from Super Rugby side Western Force having won 30 caps since he made his Argentina debut against Wales four years ago.
Meanwhile, lock hLee-Warner, who is 6ft 4ins tall and weights 17-and-a-half stone, is English-qualified through a grandfather.
#5.Valery Morozov from Bath
Morozov was signed by Diamond when he was Director of Rugby at Sale Sharks in 2019 and he has made the mobile, ball-handling forward his sixth new signing ahead of succeeding Alan Solomons as Warriors Director of Rugby.
#6. Renato Giammarioli from Zebre
Number eight Giammarioli, who has been capped five times by Italy, will arrive at Sixways from United Rugby Championship side Zebre.
#7. Hame Faiva from Benetton
Faiva, 27, will arrive at Sixways from Treviso-based Benetton on a two-year contract having joined the United Rugby Championship side five years ago from Blues in his native New Zealand.
#8?. Mike Brown from Newcastle
Despite not confirming the addition, Worcester are now ahead of Ealing and Sale in the race to sign the former England fullback.