Information from: The Columbo Phile by Mark Dawidziak
    
    "You're the most persistent creature I ever met, but likable. The
    astonishing thing is is you're likable."
    
    "You're a sly little elf "
    
    "You never stop, do you?" "You're an intelligent man,
    Columbo, but you hide it."
    
DR. RAY FLEMING (GENE BARRY)
Prescription: Murder (1968)
    
    "You know, Columbo, you're almost likable in a shabby sort of way.
    Maybe it's the way you come slouching in here with your shopworn
    bag of tricks.... The humility, the seeming absentmindedness The
    homey anecdotes about the family, the wife. Yeah, Lieutenant
    Columbo, fumbling and bumbling along, but it's always the jugular
    he's after. And I imagine that more often than not, he's successful."
    
    "You're very lucky, Lieutenant. No, congratulations, you're very
    smart. "

LESLIE WILLIAMS (LEE GRANT) 
Ransom for a Dead Man (1971)
    
    
    "I'm beginning to like you."
    
    
KEN FRANKLIN (JACK CASSIDY) 
Murder by the Book (1971)
    
    'You are so transparent, Columbo . . . a compulsively suspicious
    bureaucrat.... Would you please do me a favor and stop pestering
    me. "
    
DALE KINGSTON (ROSS MARTIN) 
Suitable for Framing (1971)
    
    "Lieutenant, anybody ever tell you you're very much like an arachnid
    . . . a tick. They're quite common but excessively tenacious. They
    hang on. They let go only under extreme prodding."
    
ELLIOT MARKHAM ( PATRICK O. NEAL ) 
Blueprint for Murder (1972)
    
    
    "You're a great detective."
    
ALEX BENEDICT (JOHN CASSAVETES) 
Etude in Black (1972)
    
    "You're priceless."
    
NORA CHANDLER (ANNE BAXTER) 
Requiem for a Falling Star (1973) 
    
    
    "Columbo, you're marvelous transparent but marvelous."
    

JARVIS GOODLAND (RAY MILLAND) 
The Greenhouse Jungle (1972)
    

    
    "Believe me, if there's anybody who could do anything about it, it's
    going to be Lieutenant Columbo."
    
    "Lieutenant Columbo, you're remarkable. You have intelligence. You
    have perception. You have tenacity. You've got everything but proof.
    

DR. BARRY MAYFIELD (LEONARD NIMOY) 
A Stitch in Crime (1973)
  


    
    "Lieutenant, you're a pleasant enough man. You work hard. And I
    respect your motivations. But, please, stop this pretense.
    

EMMET CLAYTON (LAURENCE HARVEY) 
The Most Dangerous Match (1973)
    
    
    "You really are a very stubborn man."


VIVECA SCOTT (VERA MILES)
Lovely but Lethal (1973)
    
    "Lieutenant, you really are one of a kind."
    
    "You've learned very well, Lieutenant."
    
    
ADRIAN CARSINI(DONALD PLEASENCE)
Any Old Port in a Storm (1973)
    
    "You're about as subtle as a train wreck." "If I didn't find you an
    extraordinarily amusing fellow, I might even be offended."
    
    "You are sin ineredihlv stubborn man."


DR. BART KEPPLE (ROBERT CLILP)
Double Exposure (1973)
    
         
    "You have a very transparent mind."
    
           
DR. MARSHALL CAHILL (JOSE FERRER)
Mind Over Mayhem (1974)