Help me remember the actor's name

[PGmicstand]

Just to satisfy my itching brain!
Had a dream last night which featured an actor walking across a car park. He seemed familiar and I'm sure he's a real person.
The problem is, I can't think of much detail.
He's the sort of person who'd be in drama things like murder mysteries or maybe period dramas of the 1920s/1930s - he'd be playing a hotel proprietor type character.
I think he's fairly tall. He's an older actor - or at least, was then - he may have died.
White hair, with a bit of a wave, sometimes worn slicked back. A bit 'jowly' but not with a particularly wide face and has a moustache.
It's NOT Richard Griffiths. There's a similarity but the actor I'm thinking of has a narrower face than that and I don't think he has glasses.

Any ideas?

Ned Beatty?

No. Hairline is wrong but he could be in the right sort of age bracket.

Brian Murphy has exactly the right sort of moustache if it were a white/pale blond one. But it isn't him.

John Bluthal from the Vicar of Dibley?

John Savident - No. Too bald and again, not someone from a soap as far as I can recall. Older pics of him have the right sort of chin/neck/jowl.

Jim Broadbent already discounted. Wrong face shape, eyes too manic.

Already discounted

No. Too old, too suave.

Already discounted

No. But some similarity in hair/hairline/forehead

Brian Murphy is fairly close in the moustache department but I've already discounted him as I know his name and what he looks like.

Tom Wilkinson - No. Hairline too high, chin not right somehow.

Already discounted

That's quite a bit more jowly - I imagine that when he shook those it was like a magnificent thunderclap.

No, but it's not the beloved Mr. Carson

Peter Vaughan already discounted
John Standing - No. Hairline wrong, face a bit too thin.

No. Hairline too high/hair more grey than white. I'd have recognised him from other work.

No. Hairline too high, looks too jovial.

Really appreciate all the input so far.
I think, regrettably, I'm going to have to put this on hold. It's making me so cross that I can't think of the person. I can't think of anything they've been in, or any part of their name. POSSIBLY it's a Richard or Geoffrey sort of name (if that makes sense).

If you were to combine the various elements of the people I pulled out then you might be able to make a photofit:
A sort of 'stretched-out' and thinner version of Richard Griffiths without the beard, with a bit of Peter Ustinov as Poirot and William Gaunt thrown in.

A moustache like Brian Murphy
White-blond hair quite like Keith Baron when he was in Duty Free. Also hairline a bit like Michael McKean and Ian McNiece/John Stride
Similar around the eyes and mouth to George Cole
Similar across the cheeks to Conleth Hill
Similar around the eyes and nose to Brewster Mason

Tallish, quite solid/a bit overweight but someone who moves fairly lightly on their feet.
Good head of hair - not a receding hairline. Hair a bit wavy/full, and concentrated on the crown or top of the head. Maybe a bit shorter at the sides.
Fairly pale complexion (at least not tanned/olive skinned)
White/pale grey/blond eyebrows.
Possibly blue eyes but I'm not sure
No beard
Not a prominent nose

I do promise that if I work out/find out who it is I will post this. And I will check back for suggestions.
I attach the updated list, just in case anyone was keeping tabs.

Michael Byrne?

Arnold Ridgely?

I'd suggest David Sterne as he has a lot of the features you mention but I think he's always been thinner on top.

John Pertwee?
Tom Baker?
SIr Karl Jenkins? (composer, not an actor)

Richard Pasco?

I think I've got a good contender here Richard Vernon

https://jamesbond.fandom.com/wiki/Richard_Vernon

I tell you what @PGmicstand if there is a casting director out there going 'I need someone a bit like Richard Griffiths and a bit like Peter Ustinov' you could sell them your spreadsheet!

Bill Pertwee?
Richard O'Sullivan (retired in early 2000s though)?

Anthony Quayle?