
St. Louis, Missouri, USA
Robert John Holthaus (December 28, 1928 – August 2, 1985), better known as Bob Holt, was an American actor, best known for his voice work. Holt's first film role came in 1950, acting as Octavius Caesar in Julius Caesar. His career as a voice artist began with the 1968 short film Johnny Learns His Manners, for which he provided all of the voices. He later appeared in such works as Bedknobs and Broomsticks, several animated television specials with Dr. Seuss, for example, The Lorax (1972), Dr. Seuss on the Loose (1973), The Hoober-Bloob Highway (1975) and The Grinch Grinches the Cat in the Hat (1982) and the animated film version of Charlotte's Web as Homer Zuckerman. Holt appeared in a variety of different works, including animated films for both adults (the 1974 sequel The Nine Lives of Fritz the Cat) and for children, as well as voice and acting work in live-action films (for the blaxploitation film Abby, Holt provided the voice of the Demon). In 1975, he was the voice of Grape Ape on The New Tom and Jerry Show. The same year, Holt provided the voice of Avatar in Ralph Bakshi's film Wizards. Avatar's voice was an imitation of actor Peter Falk. In 1982, Bob Holt played the title role in Marvel Productions' animated The Incredible Hulk (1982 TV series), also in the process creating a library of stock roars that would be used for many years afterwards.

as Mr. Seaworthy

as Williams (voice)
1969

as Dom Gordo of Ghent
1985

as Mr. Seaworthy
1984

1977

as Mogwai / Gremlins (voice)
1984

as Additional Voices (voice)
1976

1978

1984

1974

as Zagraz (voice)
1985

as Codfish (voice)
1971

1983
as Mogwai / Gremlins (voice)
1984

as Sheriff Hoot Kloot (voice) (archive sound) (uncredited)
2017

as Rotten Rodney (voice)
1986

as Mogwai / Gremlins (voice)
1984

as Stanley Slush
1983

as (voice)
1983

as Dr. Hans Zarkov (voice)
1982

as The Grinch / Waiter / The Grinch's Mother (voice)
1982

as Father (voice)
1982

as Henry Mitchell (voice)
1981

as Coco Nutwork (voice)
1981

as Muskrat (voice)
1977

as Avatar (voice)
1977

as Dogfather / Rocky McSnarl / Doctor (voice)
1976

as Dogfather / Pug / Boy (voice)
1975

as Dogfather (voice)
1975

as Tour Guide
1975

as Dogfather (voice)
1975

as Dogfather / Pug (voice)
1975

as Dogfather (voice)
1975

as Dogfather / Pug / Rocky / Priest (voice)
1975

as Dogfather (voice)
1975

as Dogfather / Pug (voice)
1975

as Dogfather / Pugg (voice)
1975

as Mr. Hoober-Bloob (voice)
1975
as Mr. Seaworthy
108 ep.

as Williams (voice)
1 episodes

as Dom Gordo of Ghent
0
as Mr. Seaworthy
108 episodes

94 episodes

as Additional Voices (voice)
32 episodes

32 episodes

5 episodes

31 episodes

as Zagraz (voice)
1 episodes

26 episodes

32 episodes
67 episodes

32 episodes

as The Hulk (voice)
13 episodes

as Dr. John Dolittle (voice)
17 episodes

as Dogfather (voice)
17 episodes

17 episodes

16 episodes