Stephen Colbert is heading to "The Office."

According to EW, Colbert will guest star on the NBC sitcom as Broccoli Rob, a member of Andy's (Ed Helms) Cornell a capella group. Look for Colbert to pop up in the Halloween episode (Thurs., Oct. 25).

Colbert is just the latest "The Daily Show" veteran to pop up on "The Office." Both Helms and former "Office" boss Steve Carell are "Daily Show" veterans. Colbert's non-"Colbert Report" credits include "Strangers With Candy," "Law & Order: Criminal Intent" and voice work on "Saturday Night Live."

In other casting news ...

"The Artist" actress Missi Pyle will guest star on "1600 Penn."
Pyle will play a Secret Service agent in the NBC comedy. [TV Guide]

"Greek" actor Jake McDorman will guest star on "Shameless."
McDorman will play Mike, Fiona's boss. [THR]

"Buffy the Vampire Slayer" actor Ken Lerner will guest on "The Big Bang Theory."
Lerner will play a love interest for Mrs. Wolowitz. [THR]

"Bones" actor Andrew Leeds will guest on "Grey's Anatomy."
Leeds will not be playing a doctor, but little else is known about his character. [TVLine]

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  • "Finale"

    Scene from "The Office" series finale.

  • "Finale"

    Scene from "The Office" series finale.

  • "Finale"

    Scene from "The Office" series finale.

  • "Finale"

    Scene from "The Office" series finale.

  • "Finale"

    Scene from "The Office" series finale.

  • "Finale"

    Scene from "The Office" series finale.

  • "Finale"

    Scene from "The Office" series finale.

  • "Finale"

    Scene from "The Office" series finale.

  • "Finale"

    Scene from "The Office" series finale.

  • "The Farm"

    "The Farm"

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  • 'The Office' Season 9

  • 'The Office' Season 9

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    Creed Bratton as Creed Bratton.

  • The Office Season 9

    Rainn Wilson as Dwight Schrute, John Krasinski as Jim Halpert.

  • The Office Season 9

    Clark Duke as Clark.

  • The Office Season 9

    Back row (l-r) Leslie David Baker as Stanley Hudson, Craig Robinson as Darryl Philbin, John Krasinski as Jim Halpert, Catherine Tate as Nellie Bertram, Creed Bratton as Creed Bratton, Middle row (l-r) Clark Duke as Clark, Jake Lacy as Pete, Angela Kinsey as Angela Martin, Ellie Kemper as Erin Hannon, Brian Baumgartner as Kevin Malone, Front row (l-r) Oscar Nunez as Oscar Martinez, Ed Helms as Andy Bernard, Kate Flannery as Meredith Palmer, Phyllis Smith as Phyllis Vance, Rainn Wilson as Dwight Schrute.

  • 'The Office' Season 9

  • The Office Season 9

    Rainn WIlson as Dwight Schrute and Clark Duke as Clark.

  • The Office Season 9

    Rainn Wilson as Dwight Schrute, Jenn Fischer as Pam Beesly Halpert, John Krsinski as Jim Halpert.

  • The Office Season 9

    Jenna Fischer as Pam Beesly Halpert.

  • The Office Season 9

    Rainn Wilson as Dwight Schrute.

  • The Office Season 9

    Jenna Fischer as Pam Beesly Halpert, John Krasinski as Jim Halpert.

  • The Office Season 9

    John Krasinski as Jim Halpert, Rainn WIlson as Dwight Schrute.

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