(It was requested to have them separated. :D)

January:

None.

February:

Me (Shhhh...), February 13th, Aquarius.

Gow, February 17th. Aquarius.

March:

Diya, March 30th. Aries.

April:

None.

May:

John, May 13th. Taurus.

Paimon, May 28th. Gemini.

June:

Lucifer, June 6th. Gemini.

July:

None.

August:

Annie, August 13th, Leo.

September:

None.

October:

None.

November:

None.

December:

None.

(I'll add more birthdays for my OCs soon. Bye!)