| | Name | Title | Phone | VM |
 | Alfonzo-Campbell, Michelle | Admin. Assistant to Assistant Principal | (618) 222-3704 | 3704 |
| Anderson, Mike | World Language Teacher | (618) 222-3713 | 4784 |
| Appel, David | Social Studies Teacher | (618) 222-3716 | 4604 |
| Arnold, Demarcus | Campus Patrol | | |
| Ashley, John | Mathematics Teacher | (618) 222-3750 | 4785 |
| Baldus, Judy | Individualized Education Teacher | (618) 222-3725 | 4443 |
| Barrett, Mara | Mathematics Teacher | | |
| Barriger, Andrea | Co-Director of Counseling / Counselor (He - Ma) | (618) 222-3731 | 3731 |
| Barriger, Marcus | Teacher Assistant | (618) 222-3712 | 4871 |
| Bauer, Carl | Teacher Assistant | | |
| Baumann, Jeffrey | Engineer | (618) 222-3724 | 3724 |
| Becherer, Jean | Science Teacher | (618) 222-3767 | 4762 |
| Beckett, Neil | Individualized Education Teacher | (618) 222-7692 | 4646 |
| Belline, Anne | Teacher Assistant | | 4558 |
| Benhoff, Eric | Industrial Education Teacher | | 4807 |
| Bennett, Michael | Campus Patrol | | 4543 |
| Bess, Catherine | World Lang, Individualized Ed Teacher | (618) 222-3713 | 4408 |
| Bland, Sarah | English Teacher | | 4561 |
| Blomberg, Diana | Teacher Assistant | | 4620 |
| Blomberg, Todd | Assistant Athletic Director/Social Studies Teacher | (618) 222-3716 | 3728 |
| Boyt, Daniel | English Teacher | (618) 222-3710 | 4641 |
| Brackman, Mark | Social Studies Teacher | (618) 222-3716 | 4466 |
| Brentlinger, John | Industrial Education Teacher | | 4468 |
| Bress, Lora | ESL Teacher | | |
| Brown, Anne | Mathematics Teacher | (618) 222-3791 | 4570 |
| Brown, Christopher | Assistant Principal | (618) 222-3750 | 3750 |
| Brown, Kacy | Speech Language Pathologist | (618) 222-3786 | 3786 |
| Brown, Maurice | Physical Education/Driver Education Teacher | (618) 222-3756 | 4716 |
| Buettner, Kaitlynn | Health Occupations/Health/PE Teacher | (618) 222-3729 | 4507 |
| Byrne, Joseph | Mathematics Teacher | (618) 222-3791 | 4722 |
| Byrne, Laura | Library Director | (618) 222-3774 | 3774 |
| Casper-Bassler, Matthew | Individualized Education Teacher | (618) 222-3725 | 4501 |
| Chism, Karen | Teacher Assistant | | |
| Chism, Kourtney | Teacher Assistant | | |
| Cook, Courtney | Teacher Assistant | | |
| Cooley, Emily | Teacher Assistant | | |
| Coughlin, Sarah | English Teacher | (618) 222-3726 | 3726 |
| Coughlin, Shawn | Mathematics Teacher | (618) 222-3791 | 4450 |
| Cowell, Andrew | Choral Music Director | (618) 222-3718 | 4476 |
| Cox, Brittany | School Counselor (Mc to Ri) | (618) 222-3761 | 3761 |
| Crask, Mark | Business Teacher | (618) 222-3715 | 4441 |
| Creek, Jeff | Social Studies Teacher | (618) 222-3716 | 4465 |
| Czyz, Natalie | Family & Consumer Science Dept. Chair | (618) 222-3717 | 3717 |
| Daniel, Alphonso | Assistant Principal | (618) 222-3772 | 3772 |
| DeGroot, Meghan | Business Teacher | (618) 222-3715 | 4505 |
| Devine, David | Teacher Assistant | | |
| Dinga, Roxane | Teacher Assistant | | 4573 |
| Donaldson, Daniel | Physical Education/Health Teacher | (618) 222-3729 | 4531 |
| Dorsey, Miya | Teacher Assistant | | |
| Downs, Jean | Science Teacher | (618) 222-3750 | 4493 |
| Dulski, Anne | World Language Teacher | | 4768 |
| Ecker, Leslie | Science Teacher | (618) 222-3750 | 4594 |
| Ecker, Shauna | World Language Teacher | (618) 222-3713 | 4420 |
| Elden, Emily | English Teacher | (618) 222-3710 | 4491 |
| Ellis, Teagan | Individualized Education Teacher | | 4693 |
| Evans, Monica | Mathematics Teacher | (618) 222-3750 | 4730 |
| Feazel, Alyssa | Individualized Education Teacher | | 4411 |
| Fehrenz, Tracy | Bookstore Manager | (618) 222-3753 | 3753 |
| Ferry, James | Security Officer | | |
| Ford, Jason | Teacher Assistant | | |
| Foster, Shondrake | Teacher Assistant | | |
| Funk, Kimberley | Physical Education/Driver Education Teacher | (618) 222-3729 | 4724 |
| Funk, Timothy | Physical Education/Driver Education Teacher | (618) 222-3780 | 4780 |
| Gaa, Andy | World Language Teacher | (618) 222-3713 | 4765 |
| Garrett, Casey | Behavior Interventionist | (618) 222-3783 | 3742 |
| Garrison, William | Social Studies Teacher | (618) 222-3716 | 4715 |
| Gaubatz, Stefanie | Individualized Education Teacher | (618) 222-3712 | 4562 |
| Geluck, Brian | Dept. Chair/Driver Ed/Health/Physical Ed Teacher | (618) 222-3778 | 3778 |
| Goins, Tonyanika | Teacher Assistant | | 4372 |
| Gordon, Deb | Speech and Language Teacher | | 4551 |
| Gray, Laurie | Social Worker (N to Z) | (618) 222-3743 | 3743 |
| Guest, Garrett | Science Teacher | | |
| Guinn, Amanda | School Counselor | (618) 222-7681 | 7681 |
| Haas, Adrienne | Teacher Assistant | | |
| Hamilton, Candace | Biology & Physical Science Teacher | | 4478 |
| Happel, Sarah | Teacher Assistant | | |
| Harris, Susan | Administrative Assistant to Athletic Director | (618) 222-3770 | 3770 |
| Harrison, Michael | Social Studies Teacher | | 4555 |
| Hassall, Timothy | Music Teacher | (618) 222-3718 | 4475 |
| Hayes, Lisa | English Teacher | (618) 222-3710 | 4744 |
| Heidorn, Jeff | Individualized Education Teacher | | 4370 |
| Hemmer, Meagan | Individualized Education Teacher | (618) 222-3725 | 4458 |
| Hendricks, Ian | Science Teacher | | 4422 |
| Hennon, Shawn | Physical Science Teacher | (618) 222-3750 | 4746 |
| Hermann, Barb | Registrar | (618) 222-3765 | 3765 |
| Herzing, Paul | Security Officer | | 4695 |
| Hickey, Tom | Mathematics Teacher | (618) 222-3791 | 4753 |
| Hill, Malcolm | Associate Principal | (618) 222-3745 | 3745 |
| Hilpert, Scott | Welding Teacher | | |
| Hinrichs, Jill | Individualized Education Teacher | (618) 222-3725 | 4404 |
| Hodson, Rich | Physics Teacher | (618) 222-3750 | 4758 |
| Hoerner, Katie | Dept. Chair/Social Studies Teacher | (618) 222-3754 | 3754 |
| Hoffman, Ray | Physical Education/Driver Education Teacher | (618) 222-3756 | 4405 |
| Hoffmann, Jason | Network Administrator | (618) 222-3784 | 3784 |
| Holliday-Pruitt, Holly | Teacher Assistant | | |
| Hopper, Jamie | Teacher Assistant | | |
| Horton, Deborah | Teacher Assistant | | |
| Hotze-Wilton, Jenny | Dept. Chair/Fine Arts/World Languages | (618) 222-3758 | 3758 |
| Isaacs, Brett | Individualized Education Teacher | (618) 222-3725 | 4419 |
| Jackson, Leonard | Campus Patrol | | |
| James, Jody | Teacher Assistant | | |
| Jenkins, Andrea | Mathematics Teacher | (618) 222-7641 | 4712 |
| Kemezys, Amanda | Mathematics Teacher | (618) 222-3791 | 4741 |
| Kincaid, Ross | English Teacher | (618) 222-3710 | 4769 |
| King, Regina | Campus Patrol | | |
| Klein, Jamison | Industrial Arts Teacher | (618) 222-7654 | 4619 |
| Kloess, Dan | Individualized Education Teacher | (618) 222-3791 | 4535 |
| Kloever, Kyla | Social Studies Teacher | (618) 222-3716 | 4707 |
| Konecek, Sarah | Individualized Education / Health/PE Teacher | (618) 222-7640 | 4684 |
| Koonce, Erica | Counseling Administrative Assistant | (618) 222-3705 | 3705 |
| Korte, Melanie | Mathematics Teacher | (618) 222-3791 | 4554 |
| Kramkowski, Brad | Individualized Education Teacher | (618) 222-3712 | 4464 |
| Kremmel, Aaron | Athletic Trainer | (618) 222-3733 | 3733 |
| Lane, Josh | Principal | (618) 222-3706 | 3706 |
| Larsen, Kalynn | Assistant Principal | (618) 222-3744 | 3744 |
| Larsen, Mark | Athletic Director/Social Studies Teacher | (618) 222-3730 | 3730 |
| Lasley, Mark | Art Teacher | (618) 222-3722 | 4778 |
| Lillard, Ann | English Teacher | (618) 222-3710 | 4723 |
| Lisch, Russell "Rusty" | Teacher Assistant | | |
| Loehring, Brian | Social Studies Teacher | (618) 222-3716 | 4424 |
| Loyet, James | Mathematics Teacher | (618) 222-3791 | 4463 |
| Maco, Micaela | English Teacher | | 4592 |
| Marshall, Parrish | Security Officer | | |
| Martin, Kimberly | Special Education Coordinator | (618) 222-3757 | 3757 |
| Mason, Matthew | Social Studies Teacher | (618) 222-3716 | 4427 |
| Mason, Stacey | World Language Teacher | (618) 222-3713 | 4796 |
| Maue, Rich | Social Studies Teacher | (618) 222-3716 | 4401 |
| McCollum, Michael | Teacher Assistant | | |
| McCrary, Eric | Individualized Education Teacher | (618) 222-7690 | 4733 |
| McGarrity, Rebekah | English Teacher | (618) 222-3710 | 4754 |
| McGarrity, Stephanie | Teacher Assistant | | 4609 |
| McKinley, Rashida | Social Worker (Hal to M) | (618) 222-3766 | 3766 |
| Meyer, Miles | Mathematics Teacher | | 4703 |
| Moore, Os | Teacher Assistant | | |
| Moran, Kristina | Science Teacher | | 4747 |
| Mudd-Osborn, Karen | Physical Education & Health Teacher | (618) 222-3729 | 4745 |
| Mueth, Melissa | World Language Teacher | (618) 222-3713 | 4739 |
| Neal, Phillip | Individualized Education Teacher | | 4666 |
| Nesbit, Crystal | Individualized Education Teacher | (618) 222-3725 | 4701 |
| Nesbit, Joseph | Instructional Technology Teacher | (618) 222-3740 | 3740 |
| Neumann, Crystal | Family & Consumer Science Teacher | (618) 222-7620 | 4546 |
| Neutzling, Tara | World Language Teacher | (618) 222-3713 | 4735 |
| Neutzling, Terry | World Language Teacher | (618) 222-3713 | 4788 |
| Novaria, Marc | Social Studies Teacher | (618) 222-3716 | 4512 |
| O'Chiu, Derek | World Language Teacher | (618) 222-3713 | 4412 |
| Olson, Michael | Administrative Assistant | (618) 222-3763 | 3763 |
| Oplinger, Christine | Individualized Education Teacher | | 4704 |
| Osborn, Matthew | Mathematics Teacher | (618) 222-3791 | 4438 |
| Owens, Lindsey | Administrative Assistant to Principal | (618) 222-3709 | 3709 |
| Padgett, Keith | Social Studies Teacher | (618) 222-3716 | 4440 |
| Paulik, Crystal | Administrative Assistant to Principal | (618) 222-3707 | 3707 |
| Pelker, Breanne | Art Teacher | | 4547 |
| Perry, Bethany | Mathematics Teacher | (618) 222-3791 | 4783 |
| Peters, Natalie | Mathematics Teacher | (618) 222-3791 | 4467 |
| Peters, Ross | Physical Education Teacher | | 4596 |
| Pfeiffer, Brad | Teacher Assistant | | 4713 |
| Phillips, Brea | Teacher Assistant | | |
| Phillips, Patrick | Campus Patrol | | |
| Presson, Ryan | Social Studies Teacher | (618) 222-3716 | 4777 |
| Pruett, Ryan | Teacher Assistant | | |
| Ramage, Alyssa | School Nurse | | 3775 |
| Ratermann, Kirsten | English Teacher | (618) 222-3710 | 4750 |
| Reece, Evelyn | English Teacher | (618) 222-3710 | 4731 |
| Reeves, Marci | English Teacher | (618) 222-3710 | 4764 |
| Rideout, Tina | Faculty Typist | (618) 222-3738 | 3738 |
| Riley, Kimberley | Individualized Education Teacher | | 4576 |
| Riley, Rashad | Teacher Assistant | | |
| Roberg, Paulette | Teacher Assistant | | |
| Roberts, Andrea | Teacher Assistant | | |
| Roedl, Christina | Individualized Education Teacher | | 4553 |
| Rogers, Zachary | English Teacher | (618) 222-3710 | 4445 |
| Rujawitz, Joe | Dean of Students | (618) 222-3747 | 3747 |
| Rygelski, Kelly | Mathematics Teacher | (618) 222-3791 | 4498 |
| Rynkowski, Ashlee | English Teacher | (618) 222-3710 | 4442 |
| Sabo, Jane | School Nurse | (618) 222-3775 | 3735 |
| Samuel, Kelvin | Assistant Chief Engineer | (618) 222-3759 | 3759 |
| Sanders, Jennifer | Mathematics Teacher | (618) 222-3791 | 4710 |
| Santos, Candice | Art Teacher | (618) 222-3722 | 4721 |
| Sauerwein, Laura | Administrative Assistant to Library | (618) 222-3704 | 3790 |
| Sax Meyer, Jean | Individualized Education Teacher | (618) 222-3725 | 4717 |
| Scaiefe, Kelli | Science Teacher | (618) 222-3750 | 4495 |
| Schaab, Cory | Physical Education Teacher | | 4490 |
| Schoenebeck, Traci | English Teacher | (618) 222-3710 | 4772 |
| Schrader, Abel | Physical Education/Driver Education Teacher | (618) 222-3729 | 4455 |
| Schrader, Rebecca | Dept. Chair/Mathematics Teacher | (618) 222-3701 | 3701 |
| Schulte, Amy | Social Studies Teacher | (618) 222-3716 | 4727 |
| Schulte, Sarah | Individualized Education Teacher | (618) 222-3725 | 4459 |
| Sears, Tonya | Co-Director of Counseling (Ro to Sm) | (618) 222-3746 | 3746 |
| Seel, Amy | Biology Teacher | (618) 222-3767 | 4469 |
| Seipp, Andrea | Social Studies Teacher | (618) 222-3716 | 4496 |
| Seneczyn, Michelle | School Counselor (A to Co) | (618) 222-3741 | 3741 |
| Sexauer, Madison | English Teacher | | 4429 |
| Siebers, Julie | Business Teacher | (618) 222-3715 | 4738 |
| Skaer, Dan | Physical Education Teacher | (618) 222-3780 | 4544 |
| Slaughter, Jessicca | Special Education Teacher | | 4497 |
| Sliment, Jane | Administrative Assistant to Assistant Principal | (618) 222-3771 | 3771 |
| Smith, Cordi | Biology Teacher | (618) 222-3702 | 4782 |
| Sorg, Jennifer | English Teacher | (618) 222-3710 | 4557 |
| Spargur, James | Security Officer | (618) 222-3719 | 3719 |
| Spillan, Jayna | Science Teacher | | 4664 |
| Steinbach, Brian | English Teacher | | 4773 |
| Stenger, Jennifer | School Counselor (Cr to Ha) | (618) 222-3764 | 3764 |
| Sternau, Neilie | Social Worker (A to Hag) | (618) 222-3749 | 3749 |
| Sternberg, Hilary | Mathematics Teacher | (618) 222-3791 | 4789 |
| Strausbaugh, Jacob | Business Teacher | | 4616 |
| Svehla, Jennifer | English Teacher | (618) 222-3710 | 4402 |
| Svoboda, Sarah | Individualized Education Teacher | (618) 222-3725 | 4614 |
| Templin, Jessica | Dept. Chair/English Teacher | (618) 222-3711 | 3711 |
| Tessereau, Mark | Band Director/Instrumental Music Teacher | (618) 222-3751 | 4751 |
| Thornberry, Tina | Family & Consumer Science Teacher | | 4488 |
| Toenjes, Jacob | Substitute Teacher | | |
| Toenjes, Lindsey | Individualized Education Teacher | | 4354 |
| Toohey, Alexis | Science Teacher | | 4363 |
| Vallem, Derek | Social Studies Teacher | (618) 222-3716 | 4790 |
| Washington, Justin | Teacher Assistant | | |
| Watts, Shelley | Biology Teacher | (618) 222-3702 | 4470 |
| Weatherford, Brittany | Teacher Assistant | | |
| West, Jeff | Dept. Chair/Science Teacher | (618) 222-3755 | 3755 |
| Whitaker, Annette | Teacher Assistant | | |
| White, Rebecca | English Teacher | | 4705 |
| Wiggs, Ryan | Social Studies Teacher | (618) 222-3716 | 4462 |
| Wilder, Merle | School Counselor (Sn to Z) | (618) 222-3762 | 3762 |
| Williamson, Jessica | Vocal Music Teacher | | 4560 |
| Willimann, Janice | Teacher Assistant | | |
| Young, Deborah | Cafeteria Manager | (618) 222-3732 | 3732 |
| Young, Katherine | Science Teacher | | 4795 |
| Zapp, Danielle | English Teacher | (618) 222-3710 | 4516 |
| Zerjal, Douglas | Social Studies Teacher | | 4552 |
| Zweigart, Ashley | Individualized Education Teacher | (618) 222-3725 | 4775 |