It’s Johnny Galecki’s 40th Birthday — See the Cast of ‘Roseanne’ Then and Now!

Roseanne Barr (Roseanne Conner)

After Roseanne, the actress, 65, returned to stand-up comedy with a world tour in 2005. In 2011, she starred in the reality show Roseanne's Nuts and became a presidential nominee for the Peace and Freedom Party in 2012. The mom-of-five also guest-starred on the ABC sitcom Cristela.

John Goodman (Dan Conner)

John, 65, is most known for his role on Roseanne — for which he won a 1993 Golden Globe Award — as well as his appearances in movies The Big Lebowski, Inside Llewyn Davis, Argo, and Flight. The actor is also recognized for voicing Pacha in The Emperor's New Groove and Sulley in the Monsters, Inc. movies. He's also a frequent host of Saturday Night Live.

Johnny Galecki (David Healy)

Johnny, 42, has found immense showbiz success since Roseanne, most notably starring as lead character Leonard Hofstadter on The Big Bang Theory. He's also appeared in films National Lampoon's Christmas Vacation, I Know What You Did Last Summer, Hancock, and In Time.

Lecy Goranson (Becky Conner-Healy, Seasons 1-5 and 8)

For the first five seasons of Roseanne, Lecy, 43, portrayed Becky before she left the show in 1992 to pursue a college education. She later returned to the series in season eight but left the program again in 1996, leaving actress Sarah Chalke to reprise the role of Dan and Roseanne's eldest daughter for the ninth and final season. Since then, the actress has guest starred on Law & Order: Special Victims Unit, Sex and the City, and Fringe.

Sarah Chalke (Becky Conner-Healy, Seasons 6, 7 and 9, Guest Star in Season 8)

In addition to Roseanne, the 40-year-old's acting credits include How I Met Your Mother, Scrubs, and Cougar Town. The mom-of-two is now appearing on the TV series Milo Murphy's Law.

Sara Gilbert (Darlene Conner-Healy)

Sara — who welcomed a son with wife Linda Perry — now works as a creator and co-host of the daytime talk show The Talk. From 2007 until 2010, the actress, 42, reunited with her former Roseanne costar Johnny Galecki for a recurring-star role on The Big Bang Theory.

Michael Fishman (D.J. Conner)

After playing Roseanne and Dan's son, Michael, 35, continued acting while going to school and appeared on shows Walker, Texas Ranger, Seinfeld, and Hitz. Before he began working behind the camera as a director, set designer, and producer, he starred as a co-host of The Roseanne Show with his former TV mom from 1998 until 2000.

Laurie Metcalf (Jackie Harris)

The mom-of-four, 62, is best known for her roles as Aunt Jackie on Roseanne — for which she won three Emmys — Carolyn Bigsby on Desperate Housewives, and Mary Cooper on The Big Bang Theory. She also starred as Marjorie McCarthy on The McCarthys.

Glenn Quinn (Mark Healy)

After Roseanne, Glenn played Allen Francis Doyle on the Buffy the Vampire Slayer spinoff Angel for 10 episodes in 1999. In addition to acting, the young star also worked as an LA nightclub owner. Glenn sadly passed away from an accidental heroin overdose in December 2002 at age 32.

Morgan and Cole Roberts (Baby Jerry Garcia)

Roseanne is these twins' only claim to acting fame! There isn't much out there on the now 22-year-old twins, but Morgan's Facebook suggests he lives in California and went to Santa Barbara City College. Cole also studies at SBCC.

We can't wait for the Roseanne reboot!

NEXT: See the cast of Cheers then and now!