Cheyenne Jackson

Cheyenne Jackson is the latest addition to the cast of Ryan Murphy's upcoming HBO pilot OpenDeadline reports. Jackson will be a series regular, playing a handsome meth addict, according to Deadline.

Fall TV: Which new show is TVGuide.com users' favorite?

The show is a modern exploration of human sexuality and relationships that revolves around five central characters. Michelle MonaghanScott Speedman,Wes BentleyAnna Torv and Jennifer Jason Leigh have already signed on for the project.

Jackson, who previously worked with Murphy for his recurring guest role on Glee, is expected to start in February, Deadline reports.