| Roster | |||||||
| No | Player | Pos | Height | Weight | Birthdate | Exp | College |
| Austin, Matt | WR | 6-2 | 202 | 7/1/1988 | R | Utah State | |
| 92 | Avril, Cliff | DE | 6-3 | 260 | 4/8/1986 | 6 | Purdue |
| 0 | Bailey, Alvin | G | 6-5 | 312 | 8/26/1991 | R | Arkansas |
| 86 | Baker, Chris (FA) | TE | 6-3 | 261 | 11/18/1979 | 10 | Michigan State |
| 89 | Baldwin, Doug | WR | 5-10 | 189 | 9/21/1988 | 3 | Stanford |
| 13 | Bates, Phil | WR | 6-1 | 220 | 9/20/1989 | 1 | Ohio U. |
| 71 | Bennett, Michael | DE | 6-4 | 274 | 11/13/1985 | 5 | Texas A&M |
| 36 | Blackmon, Will | DB | 6-0 | 210 | 10/27/1984 | 6 | Boston College |
| Boatright, Kenneth | DE | 6-4 | 253 | 3/6/1990 | R | Southern Illinois | |
| 0 | Bowie, Michael | T | 6-4 | 323 | 9/25/1991 | R | Oklahoma State |
| 52 | Bradford, Allen | RB | 5-11 | 235 | 8/31/1988 | 1 | USC |
| Brindley, James (FA) | DB | 5-11 | 191 | 2/1/1988 | R | Utah State | |
| 98 | Brock, Raheem (FA) | DE | 6-4 | 274 | 6/10/1978 | 11 | Temple |
| Brooks, Michael | DT | 6-3 | 276 | 8/28/1991 | R | East Carolina | |
| 39 | Browner, Brandon | DB | 6-4 | 221 | 8/2/1984 | 3 | Oregon State |
| 79 | Bryant, Red | DT | 6-4 | 323 | 4/18/1984 | 6 | Texas A&M |
| Bscherer, Jake | T | 6-7 | 305 | // | R | Minnesota-Duluth | |
| Buchanan, Ramon | LB | 6-1 | 228 | // | R | Miami (Fla.) | |
| 77 | Carpenter, James | T | 6-5 | 321 | 3/22/1989 | 3 | Alabama |
| 31 | Chancellor, Kam | DB | 6-3 | 232 | 4/3/1988 | 4 | Virginia Tech |
| 94 | Chukwurah, Patrick (FA) | LB | 6-1 | 250 | 3/1/1979 | 7 | Wyoming |
| Clark, Arceto | WR | 5-10 | 180 | 9/29/1989 | R | Mississippi State | |
| 91 | Clemons, Chris | DE | 6-3 | 254 | 10/30/1981 | 10 | Georgia |
| 49 | Coleman, Derrick | RB | 6-0 | 233 | 10/18/1990 | 1 | UCLA |
| 35 | Cox, Kennard (FA) | DB | 6-0 | 191 | 8/17/1985 | 3 | Pittsburgh |
| 58 | Davis, Dexter (FA) | LB | 6-1 | 244 | 11/10/1986 | 4 | Arizona State |
| 55 | Farwell, Heath | LB | 6-0 | 235 | 12/31/1981 | 9 | San Diego State |
| Fells, Darren | TE | 6-7 | 255 | 4/22/1986 | R | California-Irvine | |
| 77 | Frye, Brandon | T | 6-4 | 305 | 1/23/1983 | 4 | Virginia Tech |
| 68 | Giacomini, Breno | T | 6-7 | 318 | 9/27/1985 | 6 | Louisville |
| 49 | Gresham, Clint | LS | 6-3 | 240 | 8/24/1986 | 4 | Texas Christian |
| 27 | Guy, Winston | DB | 6-1 | 218 | 4/23/1990 | 2 | Kentucky |
| 0 | Harper, Chris | WR | 6-1 | 229 | 9/10/1989 | R | Kansas State |
| 12 | Harvin, Percy | WR | 5-11 | 184 | 5/28/1988 | 5 | Florida |
| 4 | Hauschka, Steven | K | 6-4 | 210 | 6/29/1985 | 6 | North Carolina State |
| 84 | Helfet, Cooper | TE | 6-4 | 240 | 6/2/1989 | 1 | Duke |
| Herd, Greg | WR | 6-3 | 202 | 2/15/1991 | R | Eastern Washington | |
| 0 | Hill, Jordan | DT | 6-1 | 298 | 2/8/1991 | R | Penn State |
| 56 | Hill, Leroy (FA) | LB | 6-1 | 238 | 9/14/1982 | 9 | Clemson |
| 94 | Howard, Jaye | DT | 6-3 | 301 | 12/20/1988 | 2 | Florida |
| 51 | Irvin, Bruce | LB | 6-3 | 248 | 1/11/1987 | 2 | West Virginia |
| 7 | Jackson, Tarvaris | QB | 6-2 | 225 | 4/21/1983 | 8 | Alabama State |
| 61 | Jeanpierre, Lemuel | C | 6-3 | 301 | 5/19/1987 | 4 | South Carolina |
| 8 | Johnson, Jerrod | QB | 6-5 | 251 | 7/27/1988 | 1 | Texas A&M |
| 63 | Johnson, Rishaw | G | 6-5 | 313 | 2/23/1989 | 1 | California (PA) |
| 45 | Johnson, Michael | LB | 6-0 | 254 | // | 1 | North Alabama |
| 32 | Johnson, Jeron | DB | 5-10 | 212 | 6/12/1988 | 3 | Boise State |
| 11 | Kearse, Jermaine | WR | 6-2 | 208 | 2/6/1990 | 2 | Washington |
| 77 | King, Jarriel | T | 6-5 | 317 | 2/27/1987 | 4 | South Carolina |
| 43 | Knox, Kyle | LB | 6-1 | 220 | 3/10/1989 | 1 | Fresno State |
| 37 | Lane, Jeremy | DB | 6-0 | 190 | 7/14/1990 | 2 | Northwestern State-Louisiana |
| 8 | Longwell, Ryan (FA) | K | 6-0 | 200 | 8/16/1974 | 16 | California |
| 0 | Lotulelei, John | ILB | 5-11 | 236 | 12/4/1991 | R | Nevada |
| 24 | Lynch, Marshawn | RB | 5-11 | 215 | 4/22/1986 | 7 | California |
| 42 | Maragos, Chris | DB | 5-10 | 200 | 1/6/1987 | 4 | Wisconsin |
| Marshall, Victor | TE | 6-4 | 225 | // | R | British Columbia (Canada) | |
| 14 | Martin, Charly | WR | 6-1 | 212 | 3/20/1984 | 4 | West Texas A&M |
| 41 | Maxwell, Byron | DB | 6-1 | 207 | 2/23/1988 | 3 | Clemson |
| Mayowa, Benson | DE | 6-3 | 252 | 8/3/1991 | R | Idaho | |
| 78 | McDaniel, Tony | DT | 6-7 | 305 | 1/20/1985 | 10 | Tennessee |
| 69 | McDonald, Clinton | DT | 6-2 | 297 | 1/6/1987 | 5 | Memphis |
| 48 | McGrath, Sean | TE | 6-5 | 247 | 12/3/1987 | 1 | Henderson State |
| 67 | McQuistan, Paul | T | 6-6 | 315 | 4/30/1983 | 8 | Weber State |
| 92 | Mebane, Brandon | DT | 6-1 | 311 | 1/15/1985 | 7 | California |
| 0 | Michael, Christine | RB | 5-11 | 213 | 11/9/1990 | R | Texas A&M |
| 86 | Miller, Zach | TE | 6-5 | 255 | 12/11/1985 | 7 | Arizona State |
| 36 | Milloy, Lawyer (FA) | DB | 6-0 | 211 | 11/14/1973 | 16 | Washington |
| Moen, Barrett (FA) | DT | 6-4 | 282 | 8/11/1987 | R | Minnesota | |
| 74 | Moffitt, John | G | 6-4 | 319 | 10/28/1986 | 3 | Wisconsin |
| 57 | Morgan, Mike | LB | 6-3 | 226 | 1/16/1988 | 3 | USC |
| 48 | Morgan, Michael | LB | 6-3 | 220 | 1/16/1988 | 4 | Southern California |
| 76 | Okung, Russell | T | 6-5 | 310 | 10/7/1987 | 4 | Oklahoma State |
| 65 | Omiyale, Frank (FA) | T | 6-4 | 315 | 11/23/1982 | 9 | Tennessee Tech |
| 62 | Osborne, Brent | G | 6-3 | 288 | 11/26/1988 | R | No College |
| 36 | Parker, Ron | DB | 6-0 | 206 | 8/17/1987 | 3 | Newberry |
| 75 | Person, Mike | T | 6-4 | 299 | 6/17/1988 | 3 | Montana State |
| 69 | Pitts, Chester (FA) | G | 6-4 | 308 | 6/26/1979 | 10 | San Diego State |
| 0 | Polk, Ray | FS | 6-1 | 205 | 4/22/1990 | R | Colorado |
| 2 | Portis, Josh | QB | 6-3 | 211 | 7/14/1987 | 2 | California (PA) |
| 0 | Powell, Ty | DE | 6-2 | 250 | 4/27/1988 | R | Harding |
| 9 | Quinn, Brady | QB | 6-3 | 235 | 10/27/1984 | 7 | Notre Dame |
| 18 | Rice, Sidney | WR | 6-4 | 202 | 9/1/1986 | 7 | South Carolina |
| 26 | Robinson, Michael | RB | 6-1 | 240 | 2/6/1983 | 8 | Penn State |
| Roussos, Jordan | G | 6-4 | 307 | // | R | Bowling Green State | |
| 9 | Ryan, Jon | P | 6-0 | 217 | 11/26/1981 | 8 | Regina (Canada) |
| 52 | Schmitt, Tyler | C | 6-2 | 234 | 3/25/1986 | 4 | San Diego State |
| 98 | Scruggs, Greg | DE | 6-3 | 284 | 8/17/1990 | 2 | Louisville |
| 0 | Seymour, Ryan | G | 6-5 | 300 | 2/7/1990 | R | Vanderbilt |
| 5 | Shead, DeShawn | DB | 6-1 | 220 | 6/28/1988 | 1 | Portland State |
| 25 | Sherman, Richard | DB | 6-3 | 195 | 3/30/1988 | 3 | Stanford |
| 0 | Simon, Tharold | CB | 6-2 | 202 | 3/6/1991 | R | Louisiana State |
| 53 | Smith, Malcolm | LB | 6-0 | 226 | 7/5/1989 | 3 | USC |
| 0 | Smith, Jared | DT | 6-3 | 302 | 3/20/1990 | R | New Hampshire |
| Steiner, Adam | LS | 6-2 | 240 | 5/23/1990 | R | Akron | |
| 18 | Swain, Brett | WR | 6-0 | 200 | 6/21/1985 | 4 | San Diego State |
| 64 | Sweezy, J.R. | G | 6-5 | 298 | 4/8/1989 | 2 | North Carolina State |
| 81 | Tate, Golden | WR | 5-10 | 202 | 8/2/1988 | 4 | Notre Dame |
| 93 | Terrill, Craig (FA) | DT | 6-2 | 296 | 6/27/1980 | 8 | Purdue |
| 29 | Thomas, Earl | DB | 5-10 | 202 | 5/7/1989 | 4 | Texas |
| 28 | Thurmond, Walter | DB | 5-11 | 190 | 8/12/1987 | 4 | Oregon |
| 59 | Toomer, Korey | LB | 6-2 | 234 | 12/9/1988 | 1 | Idaho |
| 22 | Turbin, Robert | RB | 5-10 | 222 | 12/2/1989 | 2 | Utah State |
| 60 | Unger, Max | T | 6-5 | 305 | 4/14/1986 | 5 | Oregon |
| Veltung, Justin | WR | 5-11 | 183 | 3/30/1991 | R | Idaho | |
| 54 | Vobora, David (FA) | LB | 6-1 | 239 | 4/8/1986 | 5 | Idaho |
| Wade, Myles | DT | 6-1 | 300 | 8/30/1989 | 1 | Portland State | |
| 54 | Wagner, Bobby | LB | 6-0 | 241 | 6/27/1990 | 2 | Utah State |
| 13 | Walters, Bryan | WR | 6-0 | 190 | 11/4/1987 | 2 | Cornell |
| 0 | Ware, Spencer | RB | 5-10 | 228 | 11/23/1991 | R | Louisiana State |
| 6 | Wiggs, Carson | K | 6-0 | 192 | 2/20/1990 | R | Purdue |
| 65 | Wilkerson, Jimmy (FA) | DE | 6-2 | 270 | 1/4/1981 | 10 | Oklahoma |
| Wilkins, Craig | LB | 6-2 | 235 | 11/28/1989 | R | Old Dominion | |
| 0 | Williams, Jesse | DT | 6-3 | 323 | 11/2/1990 | R | Alabama |
| 18 | Williams, Stephen | WR | 6-5 | 208 | 6/29/1986 | 4 | Toledo |
| 17 | Williams, Mike (FA) | WR | 6-5 | 235 | 1/4/1984 | 6 | Southern California |
| 0 | Willson, Luke | TE | 6-5 | 251 | 1/15/1990 | R | Rice |
| 3 | Wilson, Russell | QB | 5-11 | 206 | 11/29/1988 | 2 | Wisconsin |
| 26 | Winfield, Antoine | DB | 5-9 | 180 | 6/24/1977 | 15 | Ohio State |
| 50 | Wright, K.J. | LB | 6-4 | 246 | 7/23/1989 | 3 | Mississippi State |
| Injured Players | |||||||
| 48 | Fenner, Chandler (IR) | CB | 6-1 | 189 | 7/6/1990 | R | Holy Cross |
| 46 | Konz, Jameson (IR) | TE | 6-3 | 234 | 7/2/1986 | 3 | Kent State |
| 52 | McCoy, Matt (IR) | LB | 6-0 | 232 | 10/14/1982 | 8 | San Diego State |
| 85 | McCoy, Anthony (IR) | TE | 6-5 | 259 | 12/28/1987 | 4 | USC |
| Practice Squad | |||||||
| Anderson, Andre' | RB | 6-0 | 212 | 5/1/1988 | R | Tulane | |
| 33 | Finley, Jay | RB | 5-11 | 203 | 5/15/1988 | R | Baylor |
| 22 | Pinkard, Josh | CB | 6-1 | 218 | 4/2/1986 | 1 | Southern California |
| Tow-Arnett, Nick | TE | 6-3 | 248 | 9/7/1984 | R | Minnesota | |
| Roster Analysis | |||||||
| Team | OLine Avg. Ht | OLine Avg. Wt | DLine Avg. Ht | DLine Avg. Wt | Avg. Age | Youngest | Oldest |
| Seattle | 6-4 | 309.7 | 6-2 | 283.9 | 24.9 | 21 | 35 |
| Coaching Staff | |
| Position | Name |
| Head Coach | Pete Carroll |