Stack was born in
Chicago, Illinois and is a graduate of the
Actors Studio Drama School at Pace University. In 2000, he portrayed the role of the Coach in
Liz Tuccillo's play
Joe Fearless Off-Broadway with the
Atlantic Theater Company. He starred as Ted in the world premiere of Maria Micheles's play
Sleep Over at the
Theater for the New City in 2013. In 2023, he played the role of Simon, a drummer based loosely on
Mick Fleetwood, in the world premiere of
David Adjmi's play
Stereophonic at
Playwrights Horizons, continuing the role on
Broadway in 2024. Before joining the cast of
One Life to Live, Stack appeared on the
CBS soap opera
As the World Turns as Walt in 2006. He has also appeared on
Conviction (2006),
Third Watch (2006) and in the recurring role of Alec on
The Education of Max Bickford from 2001 to 2002. In 2022, Stack appeared in the first season of AMC's
Interview with the Vampire in the role of Tom Anderson. Stack portrayed Chris in the 2002 film
Roger Dodger and Doug in the 2003 film
School of Rock. ==Filmography==