Writing in 2005, the television history lecturer Dr Catherine Johnson felt that in the original three 1950s serials, Quatermass as a character represented the championing of science and rationality over the supernatural and the fantastic. "As a leading scientific innovator, Quatermass is invested with scientific and moral authority. Over the three serials, this authority is tested and undermined... Despite this, the narrative structure of all three serials works to reinforce the authority invested in Quatermass and in science. Although scientific enterprise is responsible for disastrous consequences in the first two "Quatermass" serials, it is only through science that the alien invasions are overcome... He is invested with the narrative authority to understand and "explain" the fantastic events depicted."