Shimerman has the distinction of being on not one, but two of the all-time greatest cult shows at the same time. As you might recall he appeared on both Star Trek: Deep Space Nine and Buffy from 1997-99, as Quark and Principal Snyder, respectively.
Throughout the ’80s Locklear’s blonde blowout remained immaculate in her roles as Sammy Jo Carrington on Dynasty and Officer Stacy Sheridan on T.J Hooker.
Making a name as one of TV’s most highly regarded douche bags, Ben Schwartz won over our hearts as the inimitable Jean-Ralphio before joining Don Cheadle on House of Lies, epitomizing every stereotype to do with an arrogant guy in a suit. And we can all rejoice, because as you’ve surely heard, Jean-Ralphio will be gracing Pawnee with his entrepreneurial skills at least once more.
For a period of time Cougar Town’s Ian Gomez was TV’s favorite co-worker, appearing on The Drew Carey Show (1995-2004), the short-lived Norm (1999-2001), and of course Felicity (1998-2002) as the titular heroine’s much-loved crazy boss and life-mentor fill-in, Javier.
He may be most widely known as “The Millionaire,” but Jim Backus also voiced the eponymous Quincy Magoo while playing Thurston Howell III on Gilligan’s Island in the ’60s.
We only got a small dose of him on True Blood this summer, but this guy is notorious for double-dipping shows — most famously as the originator of two pretty iconic roles on opposite sides of the law in HBO’s landmark Oz and NBC staple Law & Order.
You can almost always find Aldon on any number of animated shows, but her last season voicing Bobby on King of the Hill was an especially eccentric year for the actress. The same fall she was on Californication as Marcy Runkle and then Louie that summer as a fellow school-parent pal/crush. Aldon will be back on Californication for Season 6 in 2013, and here’s hoping we’ll see her reprise her role as Louie’s “one” the same year, after no sign of her in Season 3.
The Cheers mega-star has re-emerged as a silver fox this past decade, with overlapping roles on Curb Your Enthusiasm (technically as himself, but we’re counting it), Damages, Bored to Death, and now CSI.
As any devotee of ’90s NBC sitcoms knows, Lisa Kudrow could also be seen as Ursula Buffet on Mad About You the first season of Friends. Since the shows had back-to-back time slots, the Friends writers cooked up a fun backstory: they’d make Phoebe and Ursula twin sisters. The idea got approved by Mad About You co-creator Danny Jacobson, and Ursula even ended up crossing over on several occasions.
If you don’t know this guy already, you should. Scheer created and stars in NTSF:SD:SUV:: as Trent Hauser, who he describes as “if Jack Bauer and David Caruso had a baby while Michael Bay was in the corner, watching it, perhaps touching himself.” He has shown up in a few episodes of Happy Endings as well, playing Kimono-wearing Avi. And you can also catch him making some dangerous fashion statements as Dr. Andre Nowzick on The League(or hear him on his bi-weekly film podcast How Did This Get Made? , which is exactly what you think it’ll be).
Before Girls, Mamet had reoccurring roles on United States of Tara, Parenthood, and of course Mad Men. But she really made waves last spring, as the scene-stealing, SATC-obsessed virgin Shoshanna Shapiro, who couldn’t be more polar opposite to her concurrent role on Mad Men as the as the über-cool Time editor who befriends Peggy Olson and shows her the way to the counterculture.
We’d be completely remiss not to mention this other fine Mad Men actress, who can be seen as the neurotic yet integral member of the Greendale 7 on Community when she’s not playing the supportive wife with a surprisingly good sense of humor to Pete Campbell.