DR Michael Shayne:
It was Tucker Smith who dubbed Russ Tamblyn, not Robert Tucker (whoever that is).
This may have already been mentioned, but Robert Tucker was one of MGM's finest choral directors...and he did such things as
The Sound of Music (1965) (vocal supervisor)
... aka Rodgers and Hammerstein's The Sound of Music (UK: complete title) (USA: complete title)
My Fair Lady (1964) (vocal arranger)
Billy Rose's Jumbo (1962) (music arranger: vocals) (as Bobby Tucker)
... aka Jumbo (International: English title: informal short title)
West Side Story (1961) (vocal coach) (as Bobby Tucker)
Can-Can (1960) (vocal supervisor) (as Bobby Tucker)
... aka Cole Porter's Can-Can (USA: complete title)
Gigi (1958) (vocal supervisor)
Merry Andrew (1958) (vocal supervisor)
Les Girls (1957) (vocal supervisor)
... aka Cole Porter's Les Girls (USA: complete title)
Silk Stockings (1957) (vocal supervisor)
This Could Be the Night (1957) (vocal supervisor)
Ten Thousand Bedrooms (1957) (vocal supervisor)
The Opposite Sex (1956) (vocal supervisor)
Meet Me in Las Vegas (1956) (vocal supervisor)
... aka Viva Las Vegas! (UK)
Kismet (1955) (vocal supervisor)
It's Always Fair Weather (1955) (vocal supervisor)
Deep in My Heart (1954) (choral arrangements)
Brigadoon (1954) (choral arrangements)
Rose Marie (1954) (vocal supervisor)
Kiss Me Kate (1953) (vocal supervisor)
Lovely to Look at (1952) (music arranger: vocal arrangements)
The Belle of New York (1952) (music arranger: vocal arrangements) (uncredited)
Show Boat (1951) (music arranger: vocal arrangements)
Annie Get Your Gun (1950) (vocal supervisor) (uncredited)
Stars in My Crown (1950) (vocal music arranger)
The Barkleys of Broadway (1949) (music arranger: vocal arrangements)
Take Me Out to the Ball Game (1949) (music arranger: vocal arrangements)
... aka Everybody's Cheering (UK)
Words and Music (1948) (vocal music arranger)
Easter Parade (1948) (vocal arrangements)
... aka Irving Berlin's Easter Parade (USA: complete title)
Meet Me in St. Louis (1944) (music arranger: vocals) (uncredited)