A year after Whitney Leavitt danced her way to the “Dancing With the Stars” semifinals, her husband is stepping onto the same floor. Conner Leavitt, 32, is one of two competitors’ family members joining the show’s newest cast for season 35 this fall. At Radio City Music Hall in New York City, Whitney Leavitt arrives for the 79th Annual Tony Awards on June 7, 2026. Photo by Jamie McCarthy / Getty Images. The married-to-a-star angle gives him some…