Barney's eyes become larger and his teeth become thinner and taller. His head also gets a little smaller/narrower and rounder. Barney's tail also becomes less curly at the end, making it shorter. NOTE: Now, Barney is voiced by Dean Wendt and performed by Carey Stinson. Barney's voice is still a little dry and deep in Season 7, as Dean Wendt tries to replicate Bob West's performance early on, but now, he's given a more nasal voice. In the early episodes of Season 9, the costume had became more taller, and you will be able to see Barney's ankles. This is the only costume that has appeared for three seasons, Seasons 7-9. This costume was also used in "Let's Play with Barney" segment from Seasons 10-11.