Darth Tyranus is Count Dooku.
Count Dooku was trained as a Sith by Darth Sidious, also known as Emperor Palpatine. Darth Sidious was responsible for turning him to the dark side and giving him the Sith name Darth Tyranus.
yes.
I do not know His first name but his sith name is Darth Tyranus. His first name was Dooku, but his last name is unknown.
Darth Turanus died by Anakin Skywalker when Chancellor Palpatine told, or rather ordered Anakin to kill Turanus.
The antagonists, who are pulled into the Dark Side of the Force, are: Darth Vader (Sith name of Anakin Skywalker) Palpatine (Senator, later Chancellor and Emperor aka Darth Sidious) Count Dooku (Jedi master who trained Yoda, aka Darth Tyranus) Darth Maul (Sith minion of Palpatine who kills Qui-Gon Jinn)
Darth Sidious, Darth Tyranus, and Asajj Ventress but you could argue that Asajj Ventress was not a Sith but an Assassin
Bane, Plagueis, Sidious, Maul, Tyranus, Vader
In all of the movies combined there is Darth Maul, Darth Tyranus (Count Dooku), Darth Sidious (The Emperor) and last but not least Darth Vader. But if you include the star wars universe other than the movies then there are to many to list.
Sleepy Hollow.
Darth Tyranus. I think its a pretty cool name.
Mentioned in the movies: Darth Plagueis Darth Sidious (Senator/Chancellor Palpatine) Darth Maul Darth Tyranus (Count Dooku) Darth Vader (Anakin Skywalker) In the Expanded Universe (comics, novels, games, etc.), there are dozens more, e.g. Darth Bane, Mara Jade, Asajj Ventress, Darth Talon, Darth Sion, Darth Malak, Darth Revan, etc.