 Mark Metcalfs character, Colonel Neidermeyer, is a reprise of his  role in Animal House, despite the end of that movie stating that  Neidermeyer was killed by his own troops in Vietnam. However, this  can be explained as just a subtle nod at Metcalfs earlier role (the  only way you can even see what name is on the name tag is if you  freeze the movie when the tag is close to the camera).