| No. | Name | Ht. | Wt. | Exp | College | Games | How Acq. | Entry |
| RECEIVERS | ||||||||
| 11 | Austin, Tavon | 5-8 | 176 | 3 | West Virginia | 15/9/0/1 | D1 13 | D1 STL 13 |
| 18 | Britt, Kenny | 6-3 | 223 | 7 | Rutgers | 16/13 | UFA,TENN 14 | D1 TENN 09 |
| 89 | Cook, Jared (TE) | 6-5 | 254 | 7 | South Carolina | 16/7 | UFA,TENN 13 | D3 TENN 09 |
| 46 | Harkey, Cory (TE) | 6-4 | 259 | 4 | UCLA | 16/12 | FA 12 | CFA STL 12 |
| 88 | Kendricks, Lance (TE) | 6-3 | 250 | 5 | Wisconsin | 16/15 | D2 11 | D2 STL 11 |
| 15 | Marquez, Bradley | 5-10 | 196 | R | Texas Tech | 0/0 | CFA 15 | CFA STL 15 |
| 83 | *Quick, Brian | 6-3 | 218 | 4 | Appalachian State | 7/6/0/0 | D2 12 | D2 STL 12 |
| 19 | Welker, Wes | 5-9 | 185 | 12 | Texas Tech | 14/8/0/0 | UFA,NE 13 | CFA SD 04 |
| OFFENSIVE LINEMEN | ||||||||
| 61 | Barnes, Tim (C) | 6-4 | 306 | 4 | Missouri | 14/0/0/2 | FA 15 | CFA BLT 11 |
| 77 | Battle, Isaiah (T) | 6-7 | 290 | R | Clemson | 0/0 | FA 15 | SD5 STL 15 |
| 64 | Donnal, Andrew (T/G) | 6-6 | 316 | R | Iowa | 0/0 | D4 15 | D4 STL 15 |
| 67 | Folkerts, Brian (C/G) | 6-4 | 310 | 3 | Washburn | 16/0 | FA 15 | CFA NO 12 |
| 79 | Havenstein, Rob (T/G) | 6-8 | 321 | R | Wisconsin | 0/0 | D2 15 | D2 STL 15 |
| 60 | Kush, Eric (C/G) | 6-4 | 313 | 3 | California, Pa. | 0/0/3/13 | W,HOUS 15 | D6 KC 13 |
| 71 | Reynolds, Garrett (G/T) | 6-7 | 305 | 6 | North Carolina | 10/4/0/5 | UFA,DET 15 | D5 ATL 09 |
| 65 | *Rhaney, Demetrius (C) | 6-2 | 301 | 2 | Tennessee State | 0/0/0/0 | D7 14 | D7 STL 14 |
| 73 | Robinson, Greg (T/G) | 6-5 | 332 | 2 | Auburn | 16/12 | D1 14 | D1 STL 14 |
| 69 | Wichmann, Cody (G) | 6-5 | 319 | R | Fresno State | 0/0 | D6 15 | D6 STL 15 |
| RUNNING BACKS | ||||||||
| 36 | Cunningham, Benny | 5-10 | 217 | 3 | Middle Tennessee | 16/2 | CFA 13 | CFA STL 13 |
| 30 | Gurley, Todd | 6-1 | 227 | R | Georgia | 0/0 | D1 15 | D1 STL 15 |
| 27 | Mason, Tre | 5-8 | 207 | 2 | Auburn | 12/9/0/4 | D3 14 | D3 STL 14 |
| 34 | Reynolds, Chase | 6-0 | 205 | 3 | Montana | 15/0/0/1 | FA 13 | CFA SEA 11 |
| QUARTERBACKS | ||||||||
| 5 | Foles, Nick | 6-6 | 243 | 4 | Arizona | 8/8/0/8 | T,PHA 15 | D3 PHA 12 |
| 17 | Keenum, Case | 6-1 | 205 | 3 | Houston | 2/2/1/6 | T,STL 15 | CFA HOUS 12 |
| 14 | Mannion, Sean | 6-6 | 233 | R | Oregon State | 0/0 | D3 15 | D3 STL 15 |
| DEFENSIVE LINEMEN | ||||||||
| 90 | Brockers, Michael (T) | 6-5 | 326 | 4 | Louisiana State | 16/16 | D1 12 | D1 STL 12 |
| 99 | Donald, Aaron (T) | 6-1 | 285 | 2 | Pittsburgh | 16/12 | D1 14 | D1 STL 14 |
| 98 | Fairley, Nick (T) | 6-4 | 308 | 5 | Auburn | 8/8/0/8 | UFA,DET 15 | D1 DET 11 |
| 95 | Hayes, William (E) | 6-3 | 278 | 8 | Winston-Salem | 16/9 | UFA,TENN 12 | D4 TENN 08 |
| 91 | Long, Chris (E) | 6-3 | 268 | 8 | Virginia | 6/6/0/0 | D1 08 | D1 STL 08 |
| 96 | Longacre, Matt (E) | 6-3 | 260 | R | Northwest Missouri State | 0/0 | FA 15 | CFA STL 15 |
| 94 | Quinn, Robert (E) | 6-4 | 264 | 5 | North Carolina | 16/16 | D1 11 | D1 STL 11 |
| 97 | Sims, Eugene (E) | 6-6 | 269 | 6 | West Texas A&M | 16/1 | D6 10 | D6 STL 10 |
| 93 | Westbrooks, Ethan (E/T) | 6-4 | 267 | 2 | West Texas A&M | 6/0/0/10 | CFA 14 | CFA STL 14 |
| LINEBACKERS | ||||||||
| 56 | Ayers, Akeem (O) | 6-3 | 255 | 5 | UCLA | 11/4/0/5 | UFA,NE 15 | D2 TENN 11 |
| 53 | Bates, Daren (M) | 5-11 | 225 | 3 | Auburn | 14/0/0/2 | CFA 13 | CFA STL 13 |
| 54 | Hager, Bryce (M) | 6-1 | 235 | R | Baylor | 0/0 | D7 15 | D7 STL 15 |
| 55 | Laurinaitis, James (M) | 6-2 | 248 | 7 | Ohio State | 16/16 | D2 09 | D2 STL 09 |
| 50 | Lynch, Cameron (O) | 6-0 | 229 | R | Syracuse | 0/0 | CFA 15 | CFA STL 15 |
| DEFENSIVE BACKS | ||||||||
| 31 | Alexander, Maurice (S) | 6-1 | 220 | 2 | Utah State | 9/0/0/7 | D4 14 | D4 STL 14 |
| 26 | Barron, Mark (S) | 6-2 | 213 | 4 | Alabama | 16/9 | T,TB 14 | D1 TB 12 |
| 37 | Bryant, Christian (S) | 5-9 | 198 | 1 | Ohio State | 0/0/0/0 | FA 15 | D7 STL 14 |
| 38 | Davis, Cody (S) | 6-1 | 206 | 3 | Texas Tech | 15/0/0/1 | FA 13 | CFA STL 13 |
| 21 | Jenkins, Janoris (CB) | 5-10 | 198 | 4 | North Alabama | 14/13/0/2 | D2 12 | D2 STL 12 |
| 22 | Johnson, Trumaine (CB) | 6-2 | 208 | 4 | Montana | 9/5/0/7 | D3 12 | D3 STL 12 |
| 20 | Joyner, Lamarcus (CB) | 5-8 | 184 | 2 | Florida State | 10/1/0/6 | D2 14 | D2 STL 14 |
| 25 | McDonald Jr., Tim (S) | 6-2 | 217 | 3 | Southern Cal | 16/16 | D3 13 | D3 STL 13 |
| 23 | McLeod, Rodney (S) | 5-10 | 195 | 4 | Virginia | 16/16 | CFA 12 | CFA STL 12 |
| 47 | Roberson, Marcus (CB) | 6-0 | 191 | 2 | Florida | 9/2/0/7 | CFA 14 | CFA STL 14 |
| SPECIALISTS | ||||||||
| 6 | Hekker, Johnny (P) | 6-5 | 236 | 4 | Oregon State | 16/0 | CFA 12 | CFA STL 12 |
| 2 | Hocker, Zach (K) | 6-0 | 191 | 1 | Arkansas | 0/0/0/0 | FA 15 | D7 WSH 14 |
| 44 | McQuaide, Jake (LS) | 6-2 | 244 | 5 | Ohio State | 16/0 | CFA 11 | CFA STL 11 |
| 4 | Zuerlein, Greg (K) | 6-0 | 196 | 4 | Missouri Western | 16/0 | D6 12 | D6 STL 12 |
| PRACTICE SQUAD | ||||||||
| 66 | Arkin, David (G) | 6-5 | 307 | 4 | Missouri State | 0/0/0/0 | FA 15 | D4 DALL 11 |
| 39 | Brown, Malcolm (RB) | 5-11 | 224 | R | Texas | 0/0 | FA 15 | CFA STL 15 |
| 48 | Cunningham, Justice (TE) | 6-3 | 258 | 1 | South Carolina | 0/0/0/5 | FA 15 | D7 IND 13 |
| 57 | Hodges, Zack (LB/DE) | 6-3 | 246 | R | Harvard | 0/0 | FA 15 | CFA IND 15 |
| 45 | Laskey, Zach (FB) | 6-2 | 225 | R | Georgia Tech | 0/0 | FA 15 | CFA STL 15 |
| 24 | Patterson, Eric (CB) | 5-10 | 193 | R | Ball State | 0/0 | FA 15 | CFA NE 15 |
| 81 | Toon, Nick (WR) | 6-4 | 218 | 4 | Wisconsin | 8/1/0/8 | FA 15 | D4 NO 12 |
| 62 | Trinca-Pasat, Louis (DT) | 6-1 | 292 | R | Iowa | 0/0 | FA 15 | CFA STL 15 |
| 35 | White, Melvin (CB) | 6-1 | 215 | 3 | Louisiana-Lafayette | 15/7/1/0 | FA 15 | CFA CARO 13 |
| 92 | Worthington, Doug (DT) | 6-5 | 318 | 3 | Ohio State | 0/0/0/0 | FA 15 | D7 PITT 10 |
| EXEMPT | ||||||||
| 12 | Bailey, Stedman (WR) | 5-10 | 194 | 3 | West Virginia | 14/3/0/0 | D3 13 | D3 STL 13 |
| RESERVE/INJURED, DESIGNATED FOR RETURN | ||||||||
| 52 | Ogletree, Alec (OLB) | 6-2 | 245 | 3 | Georgia | 16/16 | D1 13 | D1 STL 13 |
| RESERVE/INJURED | ||||||||
| 68 | Brown, Jamon (G/T) | 6-4 | 323 | R | Louisville | 0/0 | D3 15 | D3 STL 15 |
| 2 | Ferguson, Isiah (WR) | 6-5 | 218 | R | Arkansas-Pine Bluff | 0/0 | CFA 15 | CFA STL 15 |
| 33 | Gaines, E.J. (CB) | 5-10 | 190 | 2 | Missouri | 15/15/0/1 | D6 14 | D6 STL 14 |
| 76 | Saffold, Rodger (G) | 6-5 | 332 | 6 | Indiana | 16/16 | D2 10 | D2 STL 10 |
| 63 | Williams, Darrell (T) | 6-5 | 301 | R | South Florida | 0/0 | CFA 15 | CFA STL 15 |
| RESERVE/SUSPENDED | ||||||||
| 42 | Watts, Trey (RB) | 5-9 | 208 | 2 | Tulsa | 14/0/0/2 | FA 15 | CFA STL 14 |
| *Ended 2014 season on reserve. | ||||||||
| Games are games played/games started/did not play/inactive in 2014. For How Acq.: D=Draft; SD=Supplemental Draft; T=Trade; W=Waivers; FA=Free Agent; CFA=College Free Agent; UFA=Unrestricted Free Agent. | ||||||||
