Old Man Rivers is the supporting antagonist of Foster’s Home for Imaginary Friends. He is a grumpy old elderly man holding a black cane on his right arm. He first appeared in the episode called Neighbor Pains from Season 4 (2006). He tells the imaginary friends to stay off his lawn and has a Go Away mat on the porch of his house. He has a son named Young Man Rivers, who is very cute and adorable. He is voiced by Tom Kenny, who also voiced SpongeBob SquarePants, The Mayor of Townsville, The Narrator, Ice King and Eduardo.