The following famous people are named "Gia":
Gia Allemand (1983-2013), model
Gia Carangi (1960-1986), model
Gia Carides (born 1974), Australian actress
Gia Ciambotti, American singer
Gia Darling (born 1977), transsexual adult film actress
Gia Farrell (born 1989), American singer
Gia Giudice, a reality show personality on the reality show Real Housewives of New Jersey
Gia Johnson (born 1986), model
Gia Long (1762-1820), Vietnamese Emperor
Gia Maione, American singer and widow of singer Louis Prima
Gia Mantegna, American actress and daughter of actor Joe Mantegna
Gia Milinovich, TV presenter
Gia Paloma (born 1984), pornographic actress
Gia Scala (1934-1972), English-American actress of Italian-Irish descent
Gia Ventola, fashion designer
The Joker's sexual orientation is not written into his character.
Soko's sexual orientation is heterosexual/straight.
Nothing is known of her sexual orientation.
The character of Flapjack is not written with sexual orientation
The fictional character of Yoshi is not depicted with sexual orientation.
Frankie Muniz has not stated his sexual orientation.
The sexual orientation of David Rodriguez is unknown.
Matt Evers' sexual orientation is not known.
The SNL character "Gilly" was not written with sexual orientation.
Reginald VelJohnson has not publicly spoken about his sexual orientation.
I think you mistake "sexual orientation" with specific types of orientation. Sexual orientation is a part of every humans make up. A person can not have a sexual orientation. Your sexual orientation is what makes you gay, straight or bisexual. Homosexuality IS illegal in some countries. You can outlaw a behavior but you can't outlaw an urge or feeling.
The fictional character of Druss does not have sexual orientation written into his description.