|"WARNING: I am Thirst-ay! And it is Fruit Punch! And it is Delicious!"|
|1st appearance:||The Family That Slays Together, Stays Together (Part 1)|
|Voice Artist:||Toby Huss|
General Treister is a member of the executive leadership of OSI. A career military man, the General is 77 years old, and has had, by his own recollection, 8 heart attacks, and predicts that Brock Samson will be the cause of the 9th. The pacemaker device in his chest is a result of multiple heart attacks, but "who's counting?".
His most notable accomplishment in the Venture Brothers Series was to organize a strike force, which came to Samson's rescue, in the Season 3 Finale. A confrontation with Samson at the end of an epic battle between the forces of The Monarch and OSI results in Samson's resignation as a special agent of OSI.
In the season 4 finale Operation: P.R.O.M. Treister is revealed to have prostate cancer. After leaving command of the O.S.I. to Hunter Gathers he shoots himself out of orbit via ICBM in the hope that alien technology will be able to cure him. He is assumed to be dead or in suspended animation.
In the feature episode all that and gargantua 2 the general is discovered floating in space and brought aboard the station and treated by Jonas junior and Billy who due to there small size and spacesuits he believes to be aliens ( the anal probe kind). When the core of Gargantua 2 is going critical Treister jumps away with the core of the station and drifts into space saving the fleeing survivors of the station as the core explodes presumably killing both Treister and JJ.
It is also to be noted that in Mid-Life Chrysalis, after Brock Samson fails his agent's license renewal test, the proctor tears up the failed test, revealing "My father is General Treister. You saved his life. The man spoke of you as a god- and you did not disappoint." Brock then reveals that he had once served as a baby-sitter for the junior Treister.
- Loves fruit punch and finds it delicious
- Has "pee-pee cancer"
- Is a fan of the rebooted Battlestar Galactica
- Has a very unusual taste in codenames
- His appearance and demeanor combines at least three character from Marvel Comics - General Thunderbolt Ross (mustache and gruff attitude), Colonel Nick Fury (eyepatch and uniform) and Iron Man (his artificial heart).(and at one stage the hulk)
- He has suffered 8 heart attacks
- He is considered the father of espionage
- He has at least one child who follows in the O.S.I supervising the licensees side of the O.S.I
- Drifted on board Gargantua-2 and mistook Billy and Jonas Jr as little martians
- A mix of both his cancer and gamma rays from space made him into a real hulk resembling the red hulk