Dennis is a member of the board of directors of Palmer Technologies.
After Curtis Holt developed an algorithm to potentially increase pay for many workers of Palmer Technologies, Dennis forced him to rework it to determine who to fire instead. Once presented with the list of two dozen names, Dennis was able to coerce Felicity Smoak in to firing them. She progressively fired some, but eventually rehired them, under the premise of needing them to assist Holt in a revolutionary technological development. Dennis appeared to disapprove, but gave Holt until the next shareholders' meeting to work up a prototype to present.
With Felicity focusing on saving the world, her attention waned on the company. However he didn't know and got the board to oust her from Palmer Tech.
- "The Candidate"
- "Restoration" (mentioned)
- "Beacon of Hope"
- "Genesis" (mentioned)
- "Monument Point"
- "Penance" (mentioned)