‘Roseanne’ revival finally confirms Johnny Galecki’s return

The "Roseanne" revival has finally confirmed that it's adding another old cast member to its lineup and we'll give you three guesses who it is, though you'll probably only need one at this point.

Yes, "Big Bang Theory" star Johnny Galecki has joined his former co-stars for the "Roseanne" reboot.

Roseanne Barr shared the news of Galecki's return on Twitter.

"We have got our Johnny Galecki back on 'Roseanne' this episode – what a joy to work with such a deeply empathetic actor," Barr tweeted of the actor's return. "Very moving 4 all of us. #JOY."

36 PHOTOS
'Big Bang Theory' star Johnny Galecki through the years
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'Big Bang Theory' star Johnny Galecki through the years
Actress Carol Kane and actor Johnny Galecki attending the premiere of 'Lemmon Sisters' on August 27, 1990 at Mann Plaza Theater in Westwood, California. (Photo by Ron Galella, Ltd./WireImage)
UNITED STATES - MARCH 04: ROSEANNE- 'Gallery' 1991 Sara Gilbert, Johnny Galecki (Photo by ABC Photo Archives/ABC via Getty Images)
UNITED STATES - OCTOBER 16: ROSEANNE - On set in New York - 10/16/93, Sara Gilbert (Darlene), Johnny Galecki (David) on the ABC Television Network comedy 'Roseanne'. 'Roseanne' is the story of a working class family struggling with life's essential problems., (Photo by ABC Photo Archives/ABC via Getty Images)
American actress Sara Gilbert, with elastic bandage on wrist, and Belgian-born actor Johnny Galecki. (Photo by Kevin Winter/DMI/The LIFE Picture Collection/Getty Images)
UNITED STATES - SEPTEMBER 28: ROSEANNE - 'Party Politics' - Season Six - 9/28/93, Johnny Galecki (David), Sara Gilbert (Darlene) on the ABC Television Network comedy 'Roseanne'. Jackie and Roseanne plan a house-warming party for Jackie's new home., (Photo by ABC Photo Archives/ABC via Getty Images)
UNITED STATES - MARCH 08: ROSEANNE - 'Gallery' 1993 Johnny Galecki (Photo by ABC Photo Archives/ABC via Getty Images)
LOS ANGELES, CA - 1995: Actor Johnny Galecki poses for a portrait while attending an event circa 1995 in Los Angeles, California. (Photo by Ron Davis/Getty Images)
Actor Johnny Galecki attends the Bed of Roses Century City Premiere on January 18, 1996 at Cineplex Odeon Century Plaza Cinemas in Century City, California. (Photo by Ron Galella, Ltd./WireImage)
NASHVILLE, TN - JUNE 07: Actor Johnny Galecki attends the 2017 CMT Music Awards at the Music City Center on June 7, 2017 in Nashville, Tennessee. (Photo by Michael Loccisano/Getty Images For CMT)
LOS ANGELES - MARCH 28: 'The Separation Agitation' -- Pictured: Leonard Hofstadter (Johnny Galecki) and Penny (Kaley Cuoco). Coverage of the CBS series THE BIG BANG THEORY, scheduled to air on the CBS Television Network. (Photo by Sonja Flemming/CBS via Getty Images)
LOS ANGELES, CA - FEBRUARY 02: Actor Johnny Galecki attends a screening of 'Rings' at Regal LA Live Stadium 14 on February 2, 2017 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
LOS ANGELES, CA - JANUARY 29: Actor Johnny Galecki attends the 23rd Annual Screen Actors Guild Awards at The Shrine Expo Hall on January 29, 2017 in Los Angeles, California. (Photo by Steve Granitz/WireImage)
NEW YORK, NY - JANUARY 20: Actor Johnny Galecki visits Build Series to discuss the movie 'Rings' at Build Studio on January 20, 2017 in New York City. (Photo by Mike Pont/WireImage)
LOS ANGELES - JANUARY 25: Sting and Johnny Galecki chat with James Corden during 'The Late Late Show with James Corden,' Tuesday, January 31, 2017 (12:35 PM-1:37 AM ET/PT) On The CBS Television Network. (Photo by Terence Patrick/CBS via Getty Images)
NEW YORK, NY - JANUARY 20: Jim Parsons and Johnny Galecki visits at SiriusXM Studios on January 20, 2017 in New York City. (Photo by Robin Marchant/Getty Images)
The Cast of The Big Bang Theory (actors Kaley Cuoco, Kunal Nayyar, Melissa Rauch, Simon Helberg, Mayim Bialik, Johnny Galecki) pose for a portrait as the winners of 'Favorite Network TV Comedy' at the 2017 People's Choice Awards at the Microsoft Theater on January 18, 2017 in Los Angeles, California. (Photo by Smallz & Raskind/Getty Images Portrait) FAVORITE NETWORK TV COMEDY
NEW YORK, NY - JANUARY 19: Actor Johnny Galecki enters the 'The Late Show With Stephen Colbert' taping at Ed Sullivan Theater on January 19, 2017 in New York City. (Photo by Ray Tamarra/GC Images)
LOS ANGELES, CA - JANUARY 18: Actors Jordana Brewster and Johnny Galecki backstage at the People's Choice Awards 2017 at Microsoft Theater on January 18, 2017 in Los Angeles, California. (Photo by Emma McIntyre/Getty Images for People's Choice Awards)
LOS ANGELES, CA - OCTOBER 15: Actor Johnny Galecki attends Hilarity for Charity's 5th Annual Los Angeles Variety Show: Seth Rogen's Halloween at Hollywood Palladium on October 15, 2016 in Los Angeles, California. (Photo by Randy Shropshire/Getty Images)
LOS ANGELES - NOVEMBER 22: 'The Birthday Synchronicity' -- Pictured: Penny (Kaley Cuoco) and Leonard Hofstadter (Johnny Galecki). Howard and Bernadette welcome their new baby and Sheldon and Amy celebrate Amy's birthday, on THE BIG BANG THEORY, Thursday, Dec. 15 (8:00-8:31 PM, ET/PT) on the CBS Television Network. (Photo by Monty Brinton/CBS via Getty Images)
LOS ANGELES - JANUARY 16: 'The Locomotion Reverberation'-- Pictured: Howard Wolowitz (Simon Helberg) and Leonard Hofstadter (Johnny Galecki). Leonard and Wolowitz try to distract Sheldon when he slows the progress of their guidance system. Also, Penny and Amy take Bernadette out for the night, leaving Raj and Stuart to care for baby Halley, on THE BIG BANG THEORY, Thursday, Feb. 9 (8:00-8:31 PM, ET/PT), on the CBS Television Network. Dean Norris returns as Colonel Williams. (Photo by Sonja Flemming/CBS via Getty Images)
WEST HOLLYWOOD, CA - AUGUST 11: Actor Johnny Galecki, Musician Billy Gibbons and Photographer Timothy White attend the Cars And Stars Exhibit at Morrison Hotel Gallery on August 11, 2016 in West Hollywood, California. (Photo by Liliane Lathan/Getty Images)
LOS ANGELES - APRIL 19: 'The Line Substitution Solution' -- Pictured: Leonard Hofstadter (Johnny Galecki) and Howard Wolowitz (Simon Helberg). Sheldon hires Stuart to spend the day with Amy when he'd rather go to a movie screening. Also, Leonard's mother, Beverly (Christine Baranski), comes to town and Penny struggles to make a connection with her, on THE BIG BANG THEORY, Thursday, May 5 (8:00-8:31, ET/PT) on the CBS Television Network. (Photo by Michael Yarish/CBS via Getty Images)
UNIVERSAL CITY, CA - MAY 26: Johnny Galecki arrives at the Red Nose Day Special on NBC at Alfred Hitchcock Theater at Universal Studios on May 26, 2016 in Universal City, California. (Photo by Jerod Harris/WireImage)
LOS ANGELES, CA - MARCH 28: Johnny Galecki (2L) and Floyd Mayweather Jr. attend a basketball game between the Boston Celtics and the Los Angeles Clippers at Staples Center on March 28, 2016 in Los Angeles, California. (Photo by Noel Vasquez/GC Images)
HOLLYWOOD, CALIFORNIA - MARCH 16: Actors Johnny Galecki and Simon Helberg attend The Paley Center For Media's 33rd Annual PALEYFEST Los Angeles �he Big Bang Theory' at Dolby Theatre on March 16, 2016 in Hollywood, California. (Photo by Matt Winkelmeyer/Getty Images)
AUSTIN, TX - MARCH 13: (L-R) Producer Aaron L. Gilbert and actors Kyle Gallner and Johnny Galecki attend the premiere of 'The Master Cleanse' during the 2016 SXSW Music, Film + Interactive Festival at Alamo Lamar D on March 13, 2016 in Austin, Texas. (Photo by James Goulden Photography/Getty Images for SXSW)
AUSTIN, TX - MARCH 13: (L-R) Actors Johnny Galecki, Kyle Gallner and writer/director Bobby Miller of 'Master Cleanse' are photographed in the Getty Images SXSW Portrait Studio powered by Samsung at the Samsung Studio on March 13, 2016 in Austin, Texas. (Photo by Smallz & Raskind/Getty Images for Samsung)
BEVERLY HILLS, CA - MARCH 09: Actor Johnny Galecki attends the 24th and final 'A Night at Sardi's' to benefit the Alzheimer's Association at The Beverly Hilton Hotel on March 9, 2016 in Beverly Hills, California. (Photo by Vincent Sandoval/WireImage)
BEVERLY HILLS, CA - MARCH 09: Actors Johnny Galecki (L) and Kaley Cuoco attend the 24th and final 'A Night at Sardi's' to benefit the Alzheimer's Association at The Beverly Hilton Hotel on March 9, 2016 in Beverly Hills, California. (Photo by Frederick M. Brown/Getty Images)
LOS ANGELES, CA - MARCH 07: Actor Johnny Galecki attends the premiere of Sony Pictures Classics' 'The Bronze' at the Regent Theater on March 7, 2016 in Los Angeles, California. (Photo by Michael Tullberg/Getty Images)
LOS ANGELES, CA - FEBRUARY 20: Actor Johnny Galecki attends 'The Big Bang Theory' 200th episode celebration at Vibiana on February 20, 2016 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
LOS ANGELES - FEBRUARY 8: 'The Celebration Experimentation' -- After more than nine years together, the gang finally celebrates Sheldon's birthday, surprising him with a special guest, on the 200th episode of THE BIG BANG THEORY, Thursday, Feb. 25 (8:00-8:31 PM, ET/PT) on the CBS Television Network. Seated left to right: Kunal Nayyar, Kaley Cuoco, Adam West, Simon Helberg and Johnny Galecki Standing left to right: Mayim Bialik, Sara Gilbert, Kevin Sussman, Jim Parsons, Melissa Rauch, Wil Wheaton, Christine Baranski and John Ross Bowie (Photo by Monty Brinton/CBS via Getty Images)
LOS ANGELES, CA - JANUARY 30: Actor Johnny Galecki attends the 22nd Annual Screen Actors Guild Awards at The Shrine Auditorium on January 30, 2016 in Los Angeles, California. (Photo by Dan MacMedan/WireImage)
Actor Johnny Galecki attends the I Know What You Did Last Summer Hollywood Premiere on October 8, 1997 at GCC Galaxy Theatre in Hollywood, California. (Photo by Ron Galella, Ltd./WireImage)
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Barr wrote in a subsequent tweet how special the reboot is to her.

"This 10th season of 'Roseanne' is just a dream come true for an old lady comic who fought so hard 2 honor working class ppl in America," Barr wrote.

Cast members including Sara Gilbert (who portrayed Galecki's onscreen wife, Darlene), Barr and Lecy Goranson all started sharing pics from set on social media last month, but Galecki (who played David Healy) was nowhere to be seen.

The "Roseanne" revival is set to air on ABC in 2018.

You can see Barr's tweets below:

this 10th season of 'Roseanne' is just a dream come true for an old lady comic who fought so hard 2 honor working class ppl in America

— Roseanne Barr (@therealroseanne) November 29, 2017

the kids playing my grandchildren on the 'roseanne' show are fantastic actors and I am in love with all three of them. They r all movie stars!

— Roseanne Barr (@therealroseanne) November 29, 2017

28 PHOTOS
Roseanne show
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Roseanne show
UNITED STATES - JANUARY 24: ROSEANNE - 'The Monday Thru Friday Show' - Season One - 1/24/89, Roseanne (Roseanne Barr) and Dan (John Goodman) disagree about where to spend a romantic 15th anniversary; Darlene (Sara Gilbert, top left) found her paper route more than she could handle; Becky (Lecy Goranson, top center) refused to dissect a frog in biology class. Laurie Metcalf (Jackie) and Michael Fishman (D.J.) also starred., (Photo by ABC Photo Archives/ABC via Getty Images)
UNITED STATES - JANUARY 19: ROSEANNE - 'Radio Days' 11/29/88 Sara Gilbert, Alicia Goranson, Roseanne Bar, Michael Fishman, John Goodman (Photo by ABC Photo Archives/ABC via Getty Images)
UNITED STATES - JANUARY 26: ROSEANNE - 'The Memory Game' 12/13/88 Roseanne Barr, John Goodman (Photo by ABC Photo Archives/ABC via Getty Images)
UNITED STATES - SEPTEMBER 08: ROSEANNE - gallery - Season Two - 9/8/89, Pictured, from left: Lecy Goranson (Becky), Roseanne Barr (Roseanne), John Goodman (Dan), Sara Gilbert (Darlene), Michael Fishman (D.J.), (Photo by ABC Photo Archives/ABC via Getty Images)
UNITED STATES - NOVEMBER 29: ROSEANNE - 'Radio Days' - Season One - 11/29/88, A songwriting contest unleashes creativity in Dan and Roseanne. Pictured: Michael Fishman (D.J.), Lecy Goranson (Becky), Sara Gilbert (Darlene), (Photo by ABC Photo Archives/ABC via Getty Images)
UNITED STATES - DECEMBER 06: ROSEANNE - 'Lovers' Lane' - Season One - 12/6/88, Jackie (Laurie Metcalf) had a salacious bet on the line with Booker (George Clooney) on bowling night., (Photo by ABC Photo Archives/ABC via Getty Images)
ROSEANNE - 'Pretty in Black' which aired on October 13, 1992. (Photo by ABC Photo Archives/ABC via Getty Images) ROSEANNE BARR
UNITED STATES - JANUARY 03: ROSEANNE - 'Dan's Birthday Bash' - Season One - 1/3/89, Becky (Lecy Goranson), Roseanne (Roseanne Barr) and Darlene (Sara Gilbert) prepared a birthday breakfast for Dan., (Photo by ABC Photo Archives/ABC via Getty Images)
ROSEANNE - 'Breaking Up Is Hard To Do' which aired on February 18, 1992. (Photo by ABC Photo Archives/ABC via Getty Images) ROSEANNE BARR;JOHN GOODMAN
UNITED STATES - JANUARY 31: ROSEANNE - 'Bridge Over Troubled Sonny' - Season One - 1/31/89, Jackie (Laurie Metcalf, left) helped Crystal struggle with her husband's death; and Roseanne (Roseanne Barr) struggles with the secret she knows about Sonny, that she wants to tell Crystal. , (Photo by ABC Photo Archives/ABC via Getty Images)
UNITED STATES - FEBRUARY 16: ROSEANNE- 'Like, a New Job' 10/9/90 Sara Gilbert (Photo by ABC Photo Archives/ABC via Getty Images)
UNITED STATES - MARCH 04: ROSEANNE- 'The Monday Thru Friday Show' 1/24/89 Roseanne Barr, John Goodman (Photo by ABC Photo Archives/ABC via Getty Images)
UNITED STATES - MAY 02: ROSEANNE - 'Let's Call It Quits' - Season One - 5/2/89, Roseanne (Roseanne Barr, center) had difficulty accepting new rules from a tough new supervisor at the factory. Natalie West (Crystal) and Laurie Metcalf (Jackie) also star., (Photo by ABC Photo Archives/ABC via Getty Images)
UNITED STATES - APRIL 11: ROSEANNE - 'Death and Stuff' - Season One - 4/11/89, A door-to-door saleman dropped dead in Roseanne (Roseanne Barr) and Dan's (John Goodman) kitchen., (Photo by ABC Photo Archives/ABC via Getty Images)
UNITED STATES - MARCH 04: ROSEANNE- 'Like, a Virgin' 10/2/90 Matt Norero, Sara Gilbert (Photo by ABC Photo Archives/ABC via Getty Images)
UNITED STATES - OCTOBER 03: ROSEANNE - 'Somebody Stole My Gal' - Season Two - 10/3/89, A lonely architect attempts to buy Roseanne (Roseanne Barr) and Dan's (John Goodman) friendship with extravagant gifts., (Photo by ABC Photo Archives/ABC via Getty Images)
ROSEANNE - 'The Mommy's Curse' which aired on September 21, 1993. (Photo by ABC Photo Archives/ABC via Getty Images) JOHNNY GALECKI;MICHAEL FISHMAN
UNITED STATES - FEBRUARY 15: ROSEANNE- 'D-I-V-O-R-C-E' 11/1/88 Roseanne Barr, Michael Fishman (Photo by ABC Photo Archives/ABC via Getty Images)
UNITED STATES - DECEMBER 06: ROSEANNE - 'Lovers' Lane' - Season One - 12/6/88, Bowling night found a different activity for Roseanne (Roseanne Barr), Becky (Lecy Goranson), Darlene (Sara Gilbert), D.J. (Michael Fishman) and Dan (John Goodman) to engage at the bowling alley. , (Photo by ABC Photo Archives/ABC via Getty Images)
UNITED STATES - JANUARY 28: ROSEANNE - 'Dan's Birthday Bash' 1/3/89 Alicia Goranson, Roseanne Barr, Sara Gilbert (Photo by ABC Photo Archives/ABC via Getty Images)
UNITED STATES - OCTOBER 19: ROSEANNE - 'Sleeper' - Season Seven - 10/19/94, Michael Fishman (D.J.) on the ABC Television Network comedy 'Roseanne'. 'Roseanne' is the story of a working class family struggling with life's essential problems., (Photo by ABC Photo Archives/ABC via Getty Images)
UNITED STATES - SEPTEMBER 18: ROSEANNE - 'The Test' - Season Three - 9/18/90, Dan (John Goodman), Darlene (Sara Gilbert) and D.J. (Michael Fishman) were on pins and needles when Roseanne (Roseanne Barr) thought that she was pregnant again., (Photo by ABC Photo Archives/ABC via Getty Images)
UNITED STATES - MAY 07: ROSEANNE - 'Scenes from a Barbecue' - Season Three - 5/7/91, Roseanne Barr (Roseanne), Shelley Winters (Nana) on the ABC Television Network comedy 'Roseanne'. 'Roseanne' is the story of a working class family struggling with life's essential problems., (Photo by ABC Photo Archives/ABC via Getty Images)
ROSEANNE - 'Terms of Estrangement' which aired on September 15, 1992. (Photo by ABC Photo Archives/ABC via Getty Images) GLENN QUINN
UNITED STATES - DECEMBER 13: ROSEANNE - 'The Memory Game' - Season One - 12/13/88, Roseanne Barr (Roseanne), Lecy Goranson (Becky), (Photo by ABC Photo Archives/ABC via Getty Images)
ROSEANNE - 'Terms of Estrangement' which aired on September 15, 1992. (Photo by ABC Photo Archives/ABC via Getty Images) ALICIA LECY GORANSON;ROSEANNE BARR;JOHN GOODMAN
UNITED STATES - SEPTEMBER 29: ROSEANNE - 'The Dark Ages' - Season Five - 9/29/92, Sara Gilbert (Darlene), Roseanne Barr (Roseanne) on the ABC Television Network comedy 'Roseanne'. Dan and Roseanne look at Darlene in a new light after David spends the night., (Photo by ABC Photo Archives/ABC via Getty Images)
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