Outros trabalhos

(2011) Theater: "Thinner Than Water" at Labyrinth Theater Company

(2010) Theater: "The Coward"at Lincoln Center LCT3, directed by Sam Gold, with Kristin Schaal, Jeremy Strong, Christopher Evan Welch, Steven Boyer, etc.

(2010) TV commercial for Wendy's

(abril de 2012) TV commercial for Orbitz 'Take Vacation Back'

(julho de 2012) TV commercial for Verizon 'Wilson Goes Global'

(2014) National commercial for Staples

(2014) Commercial for McDonald's

(2014) Stephen performs in the critically acclaimed play "Different Words for the Same Thing" with the Center Theater Group at the Kirk Douglas Theater in Los Angeles. Charles McNulty of the LA Times mentions Ellis as "the most amusing character" who "left the deepest impressions."