Zbyszewski began working in television as a writer on the game show Weakest Link.
His screenplay for After the Sunset (which he co-wrote with Craig Rosenberg) was released theatrically in 2004.
Zbyszewski went on to create the ABC science fiction series Day Break, where he worked as a co-executive producer and writer for the show's short run in the 2006–2007 television season.
[6] He co-wrote three episodes with story editor Graham Roland; "Sundown",[7] "The Package"[8] and "The Last Recruit".
In May 2019, Zbyszewski was hired as showrunner and executive producer of a Helstrom series for Hulu, based on the Marvel Comics characters Daimon and Satana Hellstrom.