The Mentalist Season 6 Spoilers: In Episode 15, Owain Yeoman and Amanda Righetti Make Final Appearance [+Trailer]

March 23, 2014 Updated: July 18, 2015

The Mentalist Season 6 Episode 15 “White as the Driven Snow” will air Sunday, March 23, 10:00 p.m. local time on CBS.

In this episode, series regulars Owain Yeoman (Wayne Rigsby) and Amanda Righetti (Grace Van Pelt) are set to depart The Mentalist.

“It’s a very exciting opportunity, I think, for fans to say their goodbyes to two beloved characters,” Yeoman tells TVGuide.com. “It’s a very dynamic episode. I think our show pushed the envelope. … It felt very different than what we’ve done.”

“I’ll be shedding a little tear on Sunday saying goodbye to my long-term buddy Wayne Rigsby,” Yeoman said.

How the duo will go out is up in the air. In last week’s episode, Van Pelt was kidnapped by an unknown assailant that goes specifically for former CBI agents.

“The whole of the episode becomes this action-packed quest for Rigsby to quite literally save the life of his wife,” Yeoman says. “The stakes couldn’t be higher for my character.”

What’s certain is that viewers will see another side of Rigsby.

“It’s a very exciting episode for us,” Yeoman says. “There’s lots of twists and turns, and there’s a bit of a badass side to Rigsby. Who knew?”