Goldblum and Mitchell will play Hiram and LeRoy Berry, respectively. The veteran actors will make their first appearance on the musical series Feb. 14 in an episode entitled "Heart."

TVLine.com also reports that the two actors will be heard singing in the upcoming episode.

Brian Stokes Mitchell, most recently on Broadway in Women on the Verge of a Nervous Breakdown, earned a Tony nomination for his performance in the title role of Man of La Mancha. He won the 2000 Tony, Outer Critics Circle and Drama Desk awards for his performance as Fred Graham/Petruchio in Kiss Me, Kate, and his other Broadway credits include lead roles in King Hedley II; Ragtime; Kiss of the Spider Woman; Jelly's Last Jam; Oh, Kay!; Mail; and the City Center Encores! mountings of Kismet, Do Re Mi and Carnival. Television audiences will be familiar with Mitchell's work from his roles on "Trapper John, M.D.," "Roots" and "Frasier." Mitchell was elected the 12th president of the Actors' Fund of America, and he has performed in concert halls and cabarets around the country. His Playbill Records CD is entitled "Brian Stokes Mitchell."

Goldblum's extensive screen credits include "Law & Order: Criminal Intent," "Jurassic Park," "The Fly," "The Big Chill," "Independence Day," "Igby Goes Down," "Next Stop Greenwich Village" and "The Life Aquatic." He has appeared in the Broadway productions of The Pillowman, The Mooney Shapiro Songbook, Two Gentleman of Verona and as the mystery guest star in The Play What I Wrote.