|This character's familial relations|
|In a relationship with Violet Beauregarde|
|No children known|
|In a relationship with Bertha Boombooms|
|No children known|
Skepness Man, in Enchiridion Marrissa, notes that Sectumsempra Sanpe was the principal of Portal High School, just before Principal Business Man. While his style of ruling Portal High School is unknown, Post-SCrash Session 3: Spectators of the Host, set around a year after Principal Business Man's coming and Mr. Sanpe's demotion to Maths teacher and the second hand assistant to Principal Business Man, states that Mr. Sanpe's meanness mainly comes from being forced to descend. Overall, Mr. Sanpe and Skepness Man are on good terms; though, in a private letter to Skepness Man's adoptive mother Violet Beauregarde, Mr. Sanpe says that Skepness Man could potentially destroy the entire universe. Later the private letters between Mr. Sanpe and Violet evolve into a full romantic affair, leading Mr. Sanpe to skip lessons to take a tour of Violet's factory, Beauregarde Chewing Gum Industry.
Also according to Skepness Man, Mr. Sanpe wasn't around in Portal High School from AG 1984 to 1998, only coming back during the rule of Principal GLaDOS. This coincides with the period during which he was a Hogwarts teacher. As a Hogwarts teacher, he is one of the villains and is presumed to be dead by the beginning of HARRY POTTER AN THE KILL OF SNAPE. However, it is revealed that he survived and moved to teaching in Portal High School again.
In TEEN FORTRESS 2 and Portal: The 4th Millennium: The Trollfic Edition, which focus on Mr. Sanpe in Portal High School for the second time, his life has taken for the worse. He has attempted to kill Principal Business Man, instead in the process "killing" a door, as well as writing Scot a lot of Fs, after Mr. Sanpe begins suspecting that Scot is a "hesmanofdite". He also becomes romantically interested in Portal High School's "Alfa B****", Bertha Boombooms.
He is eventually killed by Jenny Weasley, who along with Harry "Wheatly" Potter was on a mission specifically to kill Mr. Sanpe, after he killed the Hogwarts principal. His position as a Maths teacher was replaced with Logic Editor.
- TEEN FORTRESS 2 (First appearance)
- Portal: The 4th Millennium: The Trollfic Edition
- Enchiridion Marrissa
- Post-SCrash Session 3: Spectators of the Host
- Additional Discoveries on Marrissaverse History
- HARRY POTTER AN THE KILL OF SNAPE
- The AG 1991 Premiere of Inside Out (Mentioned only)