A fourth cast member of "The Real Housewives of Orange County" has been confirmed for season 13. In the past week three others were also confirmed by Bravo to return.

Veteran star returns

Known as the "OG" of "rhoc," vicki gunvalson will be back with the group. She's been on the show since its first season in 2006 and continues to be one of the most recognizable stars in the "Real Housewives" franchise. Other cast members confirmed for season 13 include Tamra Judge, Shannon Beador, and Kelly Dodd [VIDEO]. These three plus Vicki are considered regulars for "RHOC." As Bravo reports, Vicki's relationship with boyfriend Steve Lodge progressed. In April, the couple celebrated their second anniversary.

Things couldn't be better in her love life.

Vicki's rocky friendship with Tamra and Shannon was rough at the beginning of season 12, but they made a lot of headway by the end. The group trip to Iceland turned a lot of things around for Vicki and Tamra. They hit a rough patch at the end of season 11 on their way home from Ireland. It didn't look like things would ever be the same for the longtime friends, but they're taking steps to mend their relationship.

At the end of the season 12 reunion, Vicki was on good terms with both Tamra and Shannon. By all accounts, it indicated they'd kick off season 13 with a fresh start. Gunvalson has been busy with family and filming the show. She visited her daughter, Briana Culberson, and her family in North Carolina. Briana has had several surgeries in the last few months and her mother has kept fans up-to-date about it on social media.

Newcomers are next for confirmation

More will appear on "RHOC," but the newcomers haven't been confirmed yet. Rumored reports peg Emily Moore Simpson, Gina Kirschenheiter, and Tatiana Beene as the rookies joining [VIDEO] the squad in season 13.They're expected to replace the ones who exited after season 12 -- Lydia McLaughlin, Meghan King Edmonds, and Peggy Sulahian. They left a lot of shoes to fill.

Now that all four regular cast members are definitely returning, fans just have to wait for more news on that front. The official cast won't be announced until likely June. As the show's airtime approaches, more updates and spoilers will surface.

Are you excited to find out who makes up the whole "RHOC" cast? Whoever the lineup includes, it's sure to bring some interesting dynamics.

"The Real Housewives of Orange County" season 13 will premiere later this summer on Bravo.