
Mark Edward Proksch (born July 19, 1978) is an American comedian and actor. He is perhaps best known for a series of pranks he played on television news stations under the pseudonym "Kenny Strasser" or, as he would sometimes refer to himself, "K-Strass." Proksch would contact local news stations claiming to be a yo-yo expert. When he was booked on a show he would befuddle the interviewers with his long, rambling monologues and his inability to perform any real yo-yo tricks. Proksch's exploits gained him a wide audience and made him an overnight YouTube star.

The Twits
2025 · as Horvis Dungle (voice)

A Merry Friggin' Christmas
2014 · as Trooper Zblocki

Maximum Truth
2023 · as Fred Zurtz

Yenor
2023 · as Yenor (voice)

Another Evil
2016 · as Os

VHYes
2020 · as Teddy

The Animated Adventures of Jack Decker
2020 · as Frankenstein (voice)

Eagleheart: Paradise Rising
2013 · as Craig Balmer

Her Mind in Pieces
2019

The 12th Annual On Cinema Oscar Special
2025 · as Mark Proksch

Hamlet A.D.D.
2014

Mister America
2019 · as Mark Proksch (archive footage)

Asperger's Are Us
2016

That Dog
2015 · as Exterminator

Our Cinema Oscar Special LIVE
2017

The 11th Annual On Cinema Oscar Special LIVE from AmatoCon
2024 · as Mark Proksch (archive footage)

Good Morning Tri-State
2013 · as Toby Dean

Found Footage Festival Volume 6: Live in Chicago
2012 · as K-Strass