10/26/2012 05:16 pm ET

'Buffy' Reunion: Seth Green Guest Stars On 'How I Met Your Mother' And More Casting News

"How I Met Your Mother" is staging a "Buffy the Vampire Slayer" reunion.

According to The Hollywood Reporter, Seth Green will guest star as Lily's (Alyson Hannigan) old college friend. Green and Hannigan co-starred on "Buffy the Vampire Slayer" as one-time lovers Oz and Willow.

On "How I Met Your Mother" Green will play Daryl LaCoutre, a college friend who thought he was best friends with Lily and Marshall (Jason Segel) ... but they don't remember him.

In other casting news ...

Mira Sorvino will headline "Trooper." Sorvino played the lead role in the CBS pilot, but the show is now in pilot stages at TNT. [TVLine]

"Awkward" star Beau Mirchoff will co-star in Disney's new "Wizards of Waverly Place" special.
Mirchoff will play Dominic, a wizard who isn't as nice as he seems. [THR]

The Miz will star in ABC Family's "Christmas Bounty."
The holiday movie tells the story of a bounty hunter-turned-school teacher who hopes to keep her past a secret. [ABC Family]

Rebecca Romijn will co-star opposite Jon Tenney in "King and Maxwell."
Romijn will play Michelle Maxwell, a former secret service agent who is now a private eye. []

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