It’s beginning to look a lot like Christmas at organizations across Oregon. A good sign the holiday season has arrived is the return of some perennial favorites to the stage.

Back by popular demand, “Sherlock Holmes and the Case of the Christmas Carol,” “The Santaland Diaries,” and “A Tuna Christmas” are playing at various theaters in Portland this December.

Blending the worlds of Sir Arthur Conan Doyle and Charles Dickens, “Sherlock Holmes and the Case of the Christmas Carol” is running now through Dec. 30 at the Artist Repertory Theatre’s Alder Stage. Written by Seattle playwright John Longenbaugh, the play premiered at Seattle’s Taproot Theatre Company in 2010. Ticket prices range from $40 to $50, depending on the day of performance. Student tickets are available for $25. To purchase tickets, visit www.artistsrep.org or call 503-241-1278.

Based on David Sedaris’ experience playing an elf in a Macy’s department store’s Santaland display, “The Santaland Diaries” is on stage now through Dec. 30 at the Portland Center Stage’s Ellyn Bye Studio at the Gerding Theater at the Armory in Portland. Actor Darius Pierce plays Crumpet the elf in this one-man show. Ticket prices are $44 to $59, depending on day of performance. Tickets are available for $30 for students and youth. To purchase tickets, visit www.pcs.org or call 503-445-3700.

Finally, the Oregon Repertory Theatre brings back “A Tuna Christmas, the hit comedy by Jaston Williams, Joe Sears and Ed Howard, Dec. 13-23 at the Dolores Winningstad Theatre in Portland. Comedians Jeffrey Jason Gilpin and Alan King portray 22 different characters during the course of the play. Ticket prices range from $20 to $42.50, depending on seat location and day of performance. To purchase tickets, visit www.oregonrep.org or call 503-946-7272.