His was definitely one of the voices of my childhood - I can never listen to his voice without thinking of Smart@$$ the Weasel from Roger Rabbit.
I personally knew him best as the voice of Doc Boy in the Garfield specials (a role he even reprised on the Garfield Show). RIP.And Henry the Penguin from Oswald.
Six degrees of separation. Michael McKeon (Lenny) plays guitar, is friends with Penny Marshall (Laverne) who’s married to Rob Reiner (the Meathead on All in the Family), who casts him in Spinal Tap a few years later.