Did you (fictionally) serve as South African minister of justice? - Otto (Kevin Kline) in A Fish Called Wanda
Did you allegedly remark, “Anyone who loves the law or sausage should never see either made”? - Yes, Otto von Bismarck
Were the prop guys in a movie able to make your head spin around, although they weren’t originally asked to? - Otto the Autopilot, in Airplane!
Otto x3!
DQs:
American?
Protagonist?
IQs:
Did you ask for more gruel?
Was Fawn Hall your secretary?
Are you shown in a large painting in the atrium of the Ohio Statehouse?
Did you ask for more gruel? - Yes, Oliver Twist
Was Fawn Hall your secretary? - Yes, Lt. Col. Oliver North, USMC
Are you shown in a large painting in the atrium of the Ohio Statehouse? - This is Commodore Oliver Hazard Perry, USN, victor of the Battle of Lake Erie
Oliver x3!
DQ:
From genre fiction (sf, fantasy, detective, Western, etc.)?
IQs:
Did you and John Delaney just have a kid?
Are you a friendly little girl pig in a series of children’s books?
Have you played both a real-life mother and her daughter in a movie and a TV show, respectively?
Correct, correct, and Orestes, who slew Clytemnestra for killing his father Agamemnon on his return from the Trojan War. Granted, she’d been more than peeved at Agamemnon since he killed her first husband in front of her, then claimed her as a prize of another war.