The name Michael is usually used for males and can be changed to Michèle, Michelle, Michaela, Mechelle, Micheline, and Michaelle for female or even Mychal for either male or female.
Michael is a Hebrew name meaning "Who is like God?". In English, it is shortened as Mike, Mikey, Mickey or Mick.
Thomas is a male given name. It was formed from a Greek word of the Aramaic name "Ta'oma'" meaning "twin".
After Saint Thomas Becket, it became popular in England.
This name also has some female versions such as Thomasina, Tamsyn, Tamsin, Tasmina, Tasmino, Thomaida/Thomais, or Tammy.