WP Lab member Wendy McClellan (Green Girl) directs the world premiere of Or, (yes, the comma is part of the title). It officially opens Nov. 3 and will play a limited run through Nov. 30.

Siff, who appeared on the hit AMC series "Mad Men" as department store heiress Rachel Menken, portrays central character Aphra Behn in the new play. The cast of Or, also features Kelly Hutchinson and Andy Paris.

Or, is described as such: "Aphra Behn is getting out of the spy trade and into show biz, if she can only write her play without interruptions from her love life — celebrity Nell Gwynne, King Charles II, and double-agent William Scott, among others. While war rages and Aphra and her friends celebrate free love, cross-dressing and pastoral lyricism, the 1660s start to look a lot like the 1960s. Verse or prose, now or then, love or death... and a lot of kissing."

Or, is designed by Zane Philstrom (set design), Andrea Lauer (costume design), Deb Sullivan (lighting design) and Elizabeth Rhodes (sound design).