Bisexual
J. Edgar Hoover, the first Director of the FBI, is often speculated to have been asexual or possibly homosexual, though he never publicly identified with any sexual orientation. His private life was marked by secrecy, and rumors about his relationships with men and women circulated during his lifetime. Despite this speculation, there is no definitive evidence to confirm his sexual orientation. Hoover's legacy remains complex, intertwining his professional achievements with the controversies surrounding his personal life.
The character of Flapjack is not written with sexual orientation
Nothing is known of her sexual orientation.
The Joker's sexual orientation is not written into his character.
Soko's sexual orientation is heterosexual/straight.
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.
Reginald VelJohnson has not publicly spoken about his sexual orientation.
The fictional character of Yoshi is not depicted with sexual orientation.
The SNL character "Gilly" was not written with sexual orientation.
Matt Evers' sexual orientation is not known.
The sexual orientation of David Rodriguez is unknown.
Frankie Muniz has not stated his sexual orientation.