Kate Chastain's son Sullivan steals show in TV debut mirroring Captain Lee's style

Kate Chastain, the former chief stew on the hit series Below Deck, has always been known for her unique style. However, it was her son, Sullivan, who recently stole the spotlight as he made his television debut.

The infant, born to the former Below Deck star in May, is scheduled to make an appearance in the upcoming finale episode of Bravo's Couch Talk with Captain Lee and Kate, airing on Monday night.

In a sneak peek of the episode released on Bravo's Instagram page, the 5-month-old Sullivan is appropriately attired in a miniature white captain's outfit, complete with a bow tie, paying homage to his mother's co-host, Captain Lee Rosbach.

 The Traitors starlet shared with her former supervisor from Below Deck, “Our very exciting guest is ready. He dressed up just for you.”

Rosbach responded, before cooing to Sullivan as he nestled in Chastain's lap, "And quite smartly, I might say," adding, "So nice of you to be awake while I'm here."

Chastain, 40, then jokingly explained the reason for his usual sleepiness: "He's always been on anchor watch."

When Rosbach, 73, inquires about holding Sullivan, Chastain briefly pauses before lifting the baby to check his diaper with a playful tone.

She exclaimed, "Actually, yeah, he's ready! He's ready!"

Chastain, a former yacht stewardess who appeared alongside Rosbach on six seasons of Below Deck until her departure in February 2020, initially revealed her pregnancy in December.

Expressing her excitement, she told PEOPLE, "I am absolutely thrilled to become a mother," adding, "It's something I've always hoped for so this is truly a dream come true!"