is a
Goa'uld System Lord on the
Sci-fi Television show, ''
Stargate SG-1 ''. Yu's name came from 玉皇上帝 Yuhuang Shangdi, the name given to the supreme Taoist god during the Song Dynasty, see the
Jade Emperor .
One of the oldest Goa'uld, Yu was one of the leading voices on the council of
System Lords , and was considered one of the least antagonistic Goa'uld towards the
Tau'ri (Humans living on Earth), taking part in
Tripartite peace talks between the System Lords, the Tau'ri, and the
Asgard . He also led a combined System Lords force against
Anubis , a rogue Goa'uld who wished to attack and conquer Earth. Yu warned Teal'c that he and his rebel
Jaffa were being secretly led by the Goa'uld
Imhotep in "The Warrior." Yu's attack on
Ba'al provided the needed distraction for
Jack O'Neill to escape in "
Abyss ."
Despite these actions, Yu's attitude towards the Tau'ri has been closer to ambivalence than friendship or animosity. This may be due in part to Yu's desire for continuance of the status quo between the System Lords, or a consequence of his failing mental health later in the series.
He was in essence dying of old age, because he was unable to take on a new host and his
Sarcophagus was losing its recuperative effect on his body. His mind was being gradually affected by this, and he was showing signs of
Senility .
Yu's First Prime was an Asian
Jaffa , Oshu; despite Yu's deteriorating mental health, Oshu would often continue to carry out what he believed to be his master's will, often against Yu's own occasionally confused orders.
Yu was stabbed and killed by
Replicator Carter (a
Replicator version of
Samantha Carter ) in the season eight episode "Reckoning".
Yu was played by
Vince Crestejo .
