Sex Education Season 4 trailer confirms what we've all feared

Apart from Butterfield, Gatwa, and Mackey, Sex Education Season 4 will also see Chinenye Ezeudu, Aimee Lou Wood, Dua Saleh, Connor Swindells, and Kedar Williams-Sterling reprise their roles from earlier in the series.

Simone Ashley, Tanya Reynolds, and Patricia Allison are done, though, and won't feature.

In a letter to fans, the show's creator, lead writer, and executive producer Laurie Nunn said that the decision to end the show was not an easy one. She revealed that it felt like the right one, though, because the stories and themes they explored seemed to lead there.

She continued, "We wanted to make a show that would answer some of the questions we all used to have about love, sex, friendship, and our bodies. Something that would have helped our inner teenagers feel a little less alone."

Nunn also wrote that the show's impact has been overwhelming before expressing the hope that it has made viewers "feel a little less alone too."

If we could tell Nunn one thing, we would let her know that she succeeded. That her little baby did make us feel less alone. It has made us feel less alone for several years and has even imparted some witty, fun knowledge of sex that we didn't know before we came across it.

Even though Sex Education is ending, it won't be long before some of its cast members are once again thrust onto our screens. Gatwa's next act is as the new lead of Doctor Who. Mackey, on the other hand, will feature in the upcoming Warner Bros. Pictures film Barbie set to debut on July 21.

Sex Education Season 4 will arrive on Netflix on September 21.