Going from memory here:
The original Wonderama was hosted by Sonny Fox. He would end the show with a big “Simon Says” contest. Later it was hosted by Bob McAllister, who played all kinds of characters (Professor Supertweedypooper comes to mind) and sing songs like “Kids Are People, Too”.
We had Captain Kangaroo in the early morning. Captain Jack McCarthy (Popeye cartoons) in the early afternoon. Claude Kirschner as the ringmaster. Beachcomber Bill. Soupy Sales. Winchell Mahoney. Paul Tripp’s Birthday House.
My personal fave was Sandy Becker. Played all kinds of characters - especially “Hambone” where he’d play the song, dance and place funny sayings on the magnetic board.
All back when there were only about 5 TV channels (and Zacherly on UHF!)