Irish American actress Amy Ryan has landed the role of all roles. Staring opposite Irish man Gabriel Byrne on the ever popular HBO show "In Treatment."

Not much information has been released on Ryan's part in the show but it is known that she will take over from Dianne West as Byrne's character , Paul's, therapist on season three of the drama.

Ryan was a big hit in "The Office" and fans were hoping to see her back on the show in the next season but it looks like she has other things on her plate.

Ryan joins Debra Winger as a newcomer to the series, whose premiere date has not yet been announced. Ryan had her big break on HBO, playing a cop on season two of The Wire.