He was the lead game designer for the external group at the Sony’s Santa Monica Studio and a community manager at Capcom. His blog can be found at http://www.capcom-unity.com/s-kill
On June 16, 2012, Seth announced on his blog he was leaving Capcom.
On March 26, 2014, Seth announced publicly on Twitter that he left Sony Santa Monica "on great terms".
It was revealed around July 2015 that he was now with Radiant Entertainment working on Rising Thunder, a free-to-play, 2D fighting game that uses a simplified system of special moves being tied to just button inputs.
- Street Fighter IV's boss character Seth is named after him.
- Divekick's boss character S-Kill is literally him.
- He holds a PhD in philosophy, and used to teach it at the University of Illinois in Champaign-Urbana
- He is fluent in German.
- Most of the summers of his youth were spent earning money in Street Fighter cash games, and he claims to have made an average of about $4000 a summer.
- His most famous quirk is his unique take on pronouncing Ryu's name, calling him "Roo".
- Is an established and respected Street Fighter commentator, his most prominent appearance being the EVO 2010, 2011 and 2012 SSFIV Finals featuring Daigo Umehara (2010 and 2011 Champion), Justin Wong, Ricky Ortiz, Fuudo (2011 Champion) and Infiltration (2012 Champion).
- Among his pet phrases when commentating is "putting him on notice", which he uses whenever a player wins a round or punishes a particularly foolhardy move by his opponent.
- Another of his pet phrases is his softened version of 'mindfucked', which is "mentally guard-broken".
- When using an arcade stick, plays fighting games "crosshand." This is when a player uses their left hand for the buttons and their right hand crossed over to use the control stick.