Cobie Smulders and Taran Killam side-by-side

Netflix; Insurge Pictures and Samuel Goldwyn Films

The Bluth family returns this month, and as part of the adventure, we'll meet younger versions of Lucille and George Sr.

Cobie Smulders and Taran Killam are playing the characters, EW reports. The real-life spouses will portray the duo usually played by Jessica Walter and Jeffrey Tambor. So far, there's no word on how they'll be brought into the story or how many episodes they'll guest star in.

Both Smulders and Killam are experienced in the comedy genre. Smulders starred in CBS's "How I Met Your Mother" for nine seasons, and more recently in Netflix's "Friends From College" for two. Meanwhile, Killam spent six seasons on "Saturday Night Live" and has appeared in films like "Night School," "All Nighter," and "Brother Nature." They both starred in "Killing Gunther," which Killam wrote, directed, and produced.

Fear not: We'll also see the present-day Bluths in Season 5, too. The second half picks up with more of their usual dysfunction. The trailer showed all kinds of mayhem, teasing, "It's not over 'til we say it's over."

"Arrested Development" Season 5, Part 2 premieres Marc 15 on Netflix.

[via: EW]