Its Jack Sheldon
You just have to be resigned-
You're crashing by design

I doubt that it's anyone famous like Alan King, but since we're talking about who it
sounds like,
I would say Jack Warden or Jimmy Durante.
And as for who the cartoon announcer
looks
like, I would suggest Jack Warden again (sort of), or perhaps a resemblance to G. D. Spradlin.

No Bob Dorough sped up is Little Lolly, not the announcer.

Seriously? I'm not convinced, would Dorough have pronounced it "Enrich your language with ad-voibs?"

Bob Dorough sped upm
Im the Alpha and the Omoxus. The Omoxus and the Omega

I don't know but now I have that song stuck in my head.
Hmmmmm hmmmmm hmmmmm!!!
Ready pop?
Yep.
Ready son?
Uh-huh.
Let's go!
Let's go!
One! two!
Lolly, Lolly, Lolly, get your adverbs here.
Lolly, Lolly, Lolly, got some adverbs here.
Come on down to Lolly's, get the adverbs here!
You're going to need
If you write or read,
Or even think about it.
Lolly Lolly Lolly, get your adverbs here.
Got a lot of lolly, jolly adverbs here.
Anything you need and we can make it absolutely clear
An adverb is a word
(That's all it is! and there's a lot of them)
That modifies a verb,
(Sometimes a verb and sometimes)
It modifies an adjective, or else another adverb
And so you see that it's positively, very, very, necessary.
Lolly, Lolly, Lolly, get your adverbs here.
Father, son, and Lolly selling adverbs here.
Got a lot of adverbs, and we make it clear,
So come to Lolly! (Lolly, Lolly, Lolly)
Hello, folks, this is Lolly, Sr., saying we have every adverb in the book, so come on down and look.
Hello folks, Lolly, Jr. here. Suppose your house needs painting how are you going to paint it? That's where the adverb comes in. We can also give you a special intensifier so you can paint it very neatly or rather sloppily.
Hi! Suppose you're going nut-gathering; your buddy wants to know where and when. Use an adverb and tell him!
Get your adverbs!
Use it with an adjective, it says much more,
Anything described can be described some more.
Anything you'd ever need is in the store,
And so you choose very carefully every word you use.
Use it with a verb, it tells us how you did,
Where it happened, where you're going, where you've been.
Use it with another adverb that's the end.
And even more
How, where, or when,
Condition or reason,
These questions are answered
When you use an adverb.
Come and get it!
Lolly, Lolly, Lolly, get your adverbs here.
Quickly, quickly, quickly, get those adverbs here.
Slowly, surely, really learn your adverbs here.
You're going need 'em if you read 'em,
If you write or talk or think about 'em Lolly! (Lolly, Lolly, Lolly)
Announcer: If it's an adverb, we have it at Lolly's! Bring along your old adjectives, too - like slow, soft, and sure. We'll fit 'em out with our L-Y attachment and make perfectly good adverbs out of them!
(Get your adverbs here!) Lots of good tricks at Lolly's so come on down.
(Lolly, Lolly, Lolly!)
Adverbs deal with manner, place, time,
(Lolly, Lolly, Lolly!)
Condition, reason,
(Father, son, and Lolly)
Comparison, contrast
(Lolly, Lolly, Lolly)
Enrich your language with adverbs!
(Lolly, Lolly, Lolly)
Besides, they're absolutely free!
(Lolly, Lolly, Lolly)
At your service!
Indubitably!