According to the search results, there are several planets that will be in retrograde in October 2023. However, it is not clear which planet will be in retrograde during that specific month. Seven planets will be in retrograde at the same time in 2023, including Venus, Mercury, Jupiter, Saturn, Uranus, Neptune, and Pluto. Retrogrades can affect individuals differently depending on their astrological "house". It is important to note that retrogrades are not necessarily negative and can be used as an opportunity for growth and reflection.