In "Mad Dogs and Servicemen", Michael O'Keefe played a soldier who suffered from hysterical paralysis. While the name of the soldier was Corporal Richard Travis, his middle name/nickname might have been "Tom". There are other indications, however, that despite the obvious similarities between the episodes there are also some notable differences: In the earlier episode, O'Keefe's character arrives at the 4077th with Hysterical Paralysis (without mentioning any specific incident that may have triggered it), so Hawkeye and Trapper contact Sidney by phone who advises them offscreen to try his technique themselves - which they do, and after some initial setbacks O'Keefe's character regains his mobility and returns to the front; however in this episode (despite utilizing the same guest actor, same diagnosis, and a similar scenario) Sidney claims that O'Keefe's character was carried into his office after witnessing 3 of his friends killed, and that he worked with the soldier directly before returning him to the front himself. He also appears grateful and shows no anger towards Hawkeye as he did in the prior episode for his role in returning him to the front, and instead directs all his hostility at Sidney.