By Michael Ausiello
Updated July 22, 2009 at 06:23 AM EDT

I’m hearing Nip/Tuck’s Joely Richardson has

scored one of the hottest TV roles out there right now: Katherine Parr on

Showtime’s The Tudors.

Although unconfirmed by Showtime, a well-placed source tells me that Richardson will play Henry’s (Jonathan Rhys Meyers) last wife during Tudors’ fourth

and final season, which is slated to debut in Spring 2010.

Production on Nip/Tuck‘s final season wrapped last month, freeing Richardson up to take the gig.

A number of high profile actresses have circled the

plum part, including ****** **i*** and (as I previously reported) The X-Files’ Gillian Anderson.