it sounds like harry hill! aka Mark Hall
Paul Christie
The mascot - I'm guessing - is Moose A Moose, a specially designed character for Nick Jr. He is a moose, and has a sidekick named Zee, who is a blue jay. He has short shows when the commercial break comes on. For example, when the matching short or the short where you identify shapes comes on, it's the moose's voice that is narrating.
They were retired from Nickelodeon in favor of all Nick Jr. cartoon characters.
He was retired by Nickelodeon, in favor of Dora The Explorer.
Voice over actor Chris Phillips.
Squiggy
im afraid not becuase there are on the channel "noggin" and that channel has been replaced by nick jr
Paul Christie does the voice of Moose A. Moose
Xavier Pritchett
ACCORDING TO WIKIPEDIA: "Bumpers, songs, and interstitial games featuring Moose A. Moose and Zee D. Bird were removed from Nick Jr. at 6:00 a.m. ET on March 1, 2012, following an update of the network's image, produced by Troika Design Group. After that, Moose A. Moose and Zee D. Bird disappeared from Nick Jr. completely. Also, on that day, the "It's like preschool on TV" slogan was abandoned and replaced with "The Smart Place to Play"."
Emily Gray does the voice of Olivia http://www.chron.com/disp/story.mpl/life/main/6229885.html
On Blue's Clues, Blue is a girl.
Season one: Speaking voice: Reginald Davis Jr. Singing voice: Corwin C. Tuggles Season two- three: Speaking voice: Jordan Coleman Singing voice: Leon G. Thomas Season four: Speaking voice: Chris Grant Singing voice: Dimani Roberts/ Tyrell Williams (season 3-4)