Joseph Slotnick (born October 2, 1968) is an American film actor and voice actor. He is known for roles in Twister (1996), Hollow Man (2000), Elevator (2011), The Single Guy (1995–1997), and Nip/Tuck (2003-2006).

Life and career
Slotnick was born in Chicago, Illinois and graduated from Chaparral High School in Las Vegas, Nevada. His film roles include computer industry pioneer Steve Wozniak in the film Pirates of Silicon Valley, and a part in the 1996 blockbuster Twister. In 2011 he completed the suspense film Elevator, in which he plays one of several people trapped in a New York elevator with an evil presence. Additionally, he was on the cast of the television shows Boston Public in 2000–2001, The Single Guy from 1995–1997, and Nip/Tuck from 2003–2006.

In 2009, Slotnick played Groucho Marx's role of Captain Jeffrey Spaulding in The Goodman Theatre's production of Animal Crackers. The performance was nominated for a Joseph Jefferson Award for best actor.

Slotnick has logged several guest appearances on a number of popular television shows. He also does commercial work, ads for the NBA, 21st Century Insurance, Staples and Verizon Fios.