[DOC] [TLE] William Frawley - Wikipedia [PAR] Frawley next joined the cast of the ABC (later CBS) situation comedy My Three 
Sons, playing live-in grandfather/housekeeper Michael Francis "Bub" O'Casey ... 
used for My Three Sons after doing I Love Lucy in sequence for ... by actor 
William Demarest, who played the role of Bub's brother,... [DOC] [TLE] My Three Sons - Wikipedia [PAR] My Three Sons is an American sitcom. The series ran from 1960 to 1965 on ABC, 
and moved to ... William Demarest, playing Bub's brother, replaced Frawley in 
1965 due to Frawley's health issues. ... and 'Europe' episodes of I Love Lucy 
continued in this role for two years until his untimely death in late 1966, aged 57. [DOC] [TLE] William Frawley - IMDb [PAR] William Frawley was born in Burlington, Iowa. As a boy he ... My Three Sons 
Michael Francis 'Bub' O'Casey. (1960-1965) ... 1951-1957 I Love Lucy (TV Series
) [DOC] [TLE] Being Fred Mertz: The Life of William Frawley | Mental Floss [PAR] Feb 27, 2012 ... Much like his I Love Lucy stint, Frawley's My Three Sons work was done .... 
claimed that she and her husband were preparing to play the role of... [DOC] [TLE] 6 Things to Know about My Three Sons | Mental Floss [PAR] Dec 11, 2008 ... Even though My Three Sons ran for 12 years, in the grand scheme of classic TV, 
we ... future, so he signed on to play the widowed patriarch on My Three Sons. ... 
Enter William Frawley as Bub O'Casey, Steve's father-in-law. ... Frawley nabbed 
this role shortly after his tenure as "Fred Mertz" on I Love Lucy,... [DOC] [TLE] William Frawley - I Love Lucy - Tripod [PAR] William Frawley was born on February 26, 1887 in Burlington, Iowa. ... After I 
Love Lucy ended, Frawley continued the role of the show's successor, The Lucy-
Desi Comedy ... He played Bub O'Casey on the 1960-72 TV series My Three 
Sons. [DOC] [TLE] My Three Sons - Incredible TV and Movies [PAR] My Three Sons - Steve Douglas was a widower who was raising his three sons. 
... William Frawley as Bub O'Casey, the boys grandfather, Steve's father-in-law. .... 
(1)Desi Arnaz ("Bub", played by William Frawley, appeared as "Fred Mertz" on "I 
Love Lucy" with Desi Arnaz.) ... Mike Minor played the role of Herb in this episode
. [DOC] [TLE] My Three Sons TV show - TV Series Finale [PAR] My Three Sons ... Thankfully Steve's father-in-law, Michael Francis Bub O'Casey 
(William Frawley), lives with the Douglas clan ... Chip's young friend, Ernie 
Thompson (played by Livingston's real-life brother Barry), ... February 1, 2016; I 
Love Lucy's Doris Singleton .... Actors Who Were Desparate to Land a Superhero 
Role. [DOC] [TLE] My Three Sons - Museum of Broadcast Communications [PAR] First, in the midst of the 1964-65 season, terminally ill William Frawley's ... was 
forced to replace Bub O'Casey with "Uncle Charley," a role played by William... [DOC] [TLE] William Frawley Profile - Metacritic [PAR] Following a successful run on I Love Lucy, Frawley spent five seasons playing 
Bub O'Casey on My Three Sons. Poor health forced him to retire in 1965. [DOC] [TLE] Lunches with 'Grandpa Bub' from My Three Sons  Reminisce [PAR] Actor William Frawley (far right) played Grandpa Bub from 1960-1965. ... Frawley 
played Grandpa Bub on My Three Sons; before that he was Fred Mertz on I Love 
Lucy. ... William Demarest, Uncle Charley O'Casey (1965-1972) ... Fred 
MacMurray considered turning down his role because of the long hours it would 
require. [DOC] [TLE] Boomer TV Trivia: My Three Sons - Senior City [PAR] Aug 24, 2016 ... my three sons, 1965, fred macmurray, william frawley, don grady, barry ... 
Daughter (1940

Question: William Frawley played Bub O'Casey on "My Three Sons" & this role on "I Love Lucy"
Answer: Fred (Mertz)