Kenneth Mars (April 4, 1935 – February 12, 2011) was an American actor. He appeared in two Mel Brooks films: as the deranged Nazi playwright Franz Liebkind in The Producers (1967) and Police Inspector Hans Wilhelm Friedrich Kemp in Young Frankenstein (1974). He also appeared in Peter Bogdanovich's What's Up Doc? (1972), and Woody Allen's Radio Days (1987), and Shadows and Fog (1991).
Mars appeared in two seasons of Malcolm in the Middle as Otto Mannkusser, Francis's well-meaning but dimwitted boss and a German immigrant who owns a dude ranch. He voiced King Triton, Ariel's father, in the 1989 Disney animated film The Little Mermaid and its sequel, as well as its companion television series, and the Kingdom Hearts series. He also did several other animated voice-over film roles such as Littlefoot's grandfather in the Land Before Time series (up to 2008) and that of Professor Screweyes in We're Back! A Dinosaur's Story (1993), and King Colbert (Prince Cornelius's father) in Thumbelina (1994).
Description above from the Wikipedia article Kenneth Mars, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Colyus
Self - Guest / Various Characters
Hemsley Post
M2 (voice)
Richard (voice)
Jake
Joe
Wallace Carstairs
Beethoven (voice)
Joseph
Archie
Narrator (voice)
Mike
Mercer
Otto Mannkusser
Manny Ziegler
Horst
Uncle Sid
(segment "Tooth and Consequences")
Mr. Tinsley
Officer Callahan
Adam Bronson
William Tarkington IV
Poppa Grundov
Narrator
Auric (voice)
Director
Melvin
Lou Granite
Joshua T. Albertson
Judge John Zimring
Heimlich Menudo (voice)
Buzz / Heimlich Menudo (voice)
Buzz (voice)
Old Gorilla (voice)
(voice)
Douglas Veenhof
Gunther
Ace Atkins
Marty
Quickclaw (voice)
Additional Voices
Dr. Thursby
Mr. Buchanan
King Triton (voice)
Ridley
Don Yorkfield
Dr. Hunterhanker (voice)
Judge
Dr. Pratt
Benny
Uncle Louis Burton
Mr. Hucklebuck
Ronald Bishop
Lester De Ville
Mark Wyndham
Clyde Hayes
Colonel Von Blasko
Bill
Sgt. Turnbuckle
Fetch
Sen. Donner
Harry Zarakardos
King Triton (voice)
Sweet William (voice)
Jim Sutton
Clown
Son
The Camel with the Wrinkled Knees
Marshal
Inspector Kemp
Dr. Sam Gillison
King Colbert (voice)
Grandpa (voice)
Mayor
Professor Screweyes (voice)
Stanton Boyd
Former FBI Agent Will
Grandpa (voice)
Grandpa (voice)
Mr. Crisp
Franz Liebkind
Nick
Rabbi Baumel
Grandpa (voice)
Grandpa (voice)
Grandpa / Parasaurlophus (voice)
Magician
Grandpa (voice)
Hugh Simon
Grandpa (voice)
Grandpa (voice)
Grandpa (voice)
King Triton (voice)
Grandpa / Lambeosaurus (voice)
Self
Dr. Charlie Rollins
Cmdr. Drury
Mr. Bobrucz
Woolly Bill Hitchcock
King Triton (voice)
Director / Dogcatcher (voice)
Lou
Les Hopkins
The Coach - Principal Cleveland
Magician
Vultor / Walt (voice)
Professor Von Trapp (voice) (archive footage)
Self
Robert E. Sherwood
Max Mencken
A.J. Norbecker
Ben Fryer
Reverend Pete
Hal B. Keeler
Gene Molinari
Red Hewitt
Reverend Farrell
Paul Wrightwood
Mitchell Bernard
Dr. Arnold Bowman
Broker
Mr. Kolenkhov
Inspector Kemp (archive footage)
Smokey
Otto Bentwood
Lyndon Johnson
Grandpa Longneck
Old Gorilla (voice)
Self
Kruse
Dr. Julius Roth
Uncle Al
Self
Self