The cast of "Taxi" is just as close as ever, 40 years after the show has come to an end. 

Christopher Lloyd posted a picture of himself, Carole Kane, Tony Danza and Judd Hirsch having lunch together. The foursome, who all starred on the hit show "Taxi" together, were all smiles as they posed for the photo.

"What the hell is going on here?" Lloyd captioned the photo.

"Taxi" aired on ABC from 1978 to 1982 and was then adopted by NBC for one season, from 1982 to 1983. The show also starred Jeff Conaway, Danny DeVito, Marilu Henner, Andy Kaufman and John Burns.

Carol Kane, Christopher Lloyd, Judd Hirsch and Tony Danza smiling at the camera

Former stars of the hit show "Taxi," Carole Kane, Judd Hirsch, Tony Danza and Christopher Lloyd reunited for lunch. (Christopher Lloyd twitter)

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The show followed a group of co-workers who worked the night shift at Sunshine Cab Company as they dealt with the ups and downs of life. 

Hirsch and Danza were series regulars from the beginning, with Kane and Lloyd joining in first as guests and recurring characters before ending the show as full time cast members. Danza played Tony Banta, a Vietnam War veteran who was an aspiring boxer, while Hirsch played Alex Reiger, the one everyone goes to for advice, and the only one who considers cab driving his permanent profession.

Kane's character, Simka Gravas, first appeared as a guest in season two, later returning to the show as a recurring character in season four and getting the upgrade to series regular in the show's fifth and final season. She played the love interest and then-wife of Kaufman's character, Latka Gravas.

Lloyd joined the show as a guest in the first season, but was quickly elevated to series regular status in season two, playing the wacky Reverand Jim "Iggy" Ignatowski, a former Harvard University student whose life changes course after he ate a drug-laced brownie. 

The cast of "Taxi" in a promo shoot for the show

Danza, Kane, Hirsch and Lloyd all starred together on the hit show "Taxi." (Photo by: Frank Carroll/NBCU Photo Ban via Getty Images)

The comments section under Lloyd's tweet was filled with positive feedback from fans, with one fan asking if this reunion means a "Taxi" movie will happen sometime soon.

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In June 2022, Danza spoke with Fox 5 New York about his time on the show, revealing his co-star, Henner was his first girlfriend in Hollywood. There are no hard feelings between the exes though, as Danza spoke fondly of her and the rest of his "Taxi" co-stars.

"She's like the straw that stirs the drink," Danza told the outlet about Henner. "She puts together a zoom every month, we all get together, the ‘Taxi’ cast, Jim Brooks, we all get together on the Zoom, and we sit, we drink and eat and talk, and it's incredible."

When asked about the potential for a reboot of the popular show, Danza didn't seem as if he would be on board, saying "I don't think you should do every show in a reboot." He also went on to say the only reason networks keep rebooting their old shows is because it's easier to market those than a brand-new show.

Marilu Henner and Tony Danza backstage at the musical "Getting The Band Back Together" on Broadway

Danza credited Henner for making sure the cast of "Taxi" stays in touch, saying she sets up monthly Zoom meetings for all of them to reconnect. (Photo By Bruce Glikas/FilmMagic)

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Danza went on to star in "Who's the Boss," alongside Judith Light and Alyssa Milano, and despite his hesitance towards a reboot of "Taxi," he is involved in a "Who's the Boss" reboot.