Foley is also known for his roles as Dave Nelson in the sitcom NewsRadio, Flik in A Bug's Life, Troy in Blast from the Past, Dr. Fulton in The Middle, Bob in Hot in Cleveland, Gary O'Brien in Young Sheldon, and Danish Graves in Fargo.

[citation needed] After dropping out of high school, Foley pursued standup comedy for about a year in the Toronto Second City Training Centre, where he began taking improv classes and met Kevin McDonald, who gave him a job as an usher at a local art house theatre.

Foley played characters including Hecubus, one of the Sizzler sisters, the A. T. & Love boss, Bruno Puntz Jones, Mr. Heavyfoot, Jocelyn and Lex.

Initially involved with Kids in the Hall: Brain Candy, he left the troupe in the middle of the writing, dissatisfied with the internal strife and the quality of the script, and joined the NewsRadio cast instead.

[3] Paul Simms, creator of NewsRadio, happened to be a huge fan of Foley's work and wrote the role of Dave Nelson specifically for him.

[citation needed] In the comedy-thriller The Wrong Guy, Foley played Nelson Hibbert, an office worker who finds his boss murdered, mistakenly believes he will be blamed for the crime and runs off as a fugitive.

He portrayed a middle management employee who happens to be a vampire in the undead office comedy Netherbeast Incorporated (2007) and voiced the disgruntled elf Wayne in the holiday special series, Prep & Landing.

[6] Foley has also voiced various characters in animated films, television series and video games, such as Flik in A Bug's Life (as well as reprising for a cameo of the character during the outtakes of Toy Story 2 and the epilogue of Cars as well as in a segment from Robot Chicken, and video games like Lego The Incredibles), Yes Man in Fallout: New Vegas, Terry in Monsters University, Agent Rick in Pound Puppies, Chris in Dan Vs. and Wayne in the Prep & Landing series.

In 2009, Foley was hired by 49 North Inc./Fuel Industries, a multi-national branded content and entertainment company, to star in a web series titled, The Sensible Traveler with Bobby Fargo with six episodes that are written by TV writer Stephen Hibbert and directed by a number of people, including Leslie Iwerks and Chris Roach.

[7] In 1993, Foley appeared along with Mark McKinney and Kevin McDonald in the music video for the song "Heterosexual Man" by Vancouver band Odds.

[8] In 2008, he appeared in the alternate music video for the song "Americanarama" by Ottawa band Hollerado, where he parodied American Apparel CEO Dov Charney.

In 2010, Foley appeared in a music video for the Los Angeles band Black Robot's cover of the JJ Cale song "Cocaine",[10] which was filmed at the burlesque club Jumbo's Clown Room.

[14] In 2001, an interim child support agreement obligated Foley to pay Southey $10,700 a month, a figure based on his income when NewsRadio was in production.

Owing over half a million dollars in back payments, he believed that if he returned to Canada he would be arrested under orders from Ontario's Family Responsibility Office.