Douglas Watkins was born March 2, 1934, in Detroit, Michigan, and took up the double bass at Cass Technical High School, the same public school music program that was producing much of the next decade's hard-bop rhythm section talent. A year behind him at Cass Tech was a bassist recently arrived from Pittsburgh, Paul Chambers; the two studied harmony together in after-hours sessions at pianist Barry Harris's house and became close friends, so alike in height and dress that they started a joking rumor around the Detroit clubs that they were cousins. They were not related. The friendship was real enough that in 1952 Watkins introduced Chambers to Ann Williams, the woman Chambers married that year. (Watkins is sometimes described elsewhere as a relative of Motown bassist James Jamerson; no source turned up in researching this profile supports that claim, and it does not appear in Watkins's Wikipedia entry, AllMusic biography, or any other account consulted.)

Watkins moved to New York in 1954, part of the same wave of young Detroit players that included Chambers, Kenny Burrell, and Tommy Flanagan. He was an original member of the quintet that became Art Blakey's Jazz Messengers, joining pianist Horace Silver, trumpeter Kenny Dorham, and tenor saxophonist Hank Mobley for a Blue Note session on November 13, 1954, with Blakey on drums; a second session on February 6, 1955 completed the material Blue Note issued as Horace Silver and the Jazz Messengers. The same band, by then billed as the Jazz Messengers with Blakey and Silver as co-leaders, recorded live at Café Bohemia in Greenwich Village on November 23, 1955, released the following spring as At the Café Bohemia. In 1956 Watkins left the group alongside Silver to form the new Horace Silver Quintet; according to Silver's autobiography Let's Get to the Nitty Gritty, both men were tired of being harassed and searched by police at gigs because of the drug problems of other members of Blakey's band.

Watkins was already one of the most in-demand bassists in New York by the time he appeared, at 22, on Sonny Rollins's June 22, 1956 session for Saxophone Colossus (Prestige), a quartet date with Flanagan and Max Roach that became one of the defining tenor-saxophone records of the decade. That December 8 he led his own recording debut, Watkins at Large (Transition Records), a sextet with Donald Byrd, Mobley, Duke Jordan, Burrell, and Art Taylor. Through the rest of the 1950s he worked as a first-call session player across the Blue Note, Prestige, and Riverside rosters: Donald Byrd's early Transition and Blue Note dates, Lee Morgan's first sideman sessions, Jackie McLean's mid-1950s Prestige albums, Burrell's Blue Note leader debut and his January 1957 All Day Long (with Byrd, Frank Foster, and Flanagan), and two Prestige all-star sessions billed to no single leader, Wheelin' & Dealin' (September 1957, with John Coltrane, Frank Wess, Paul Quinichette, and Mal Waldron) and Olio (1957, with Thad Jones, Wess, Teddy Charles, Waldron, and Elvin Jones).

It was in this same stretch that Watkins crossed paths repeatedly with baritone saxophonist Pepper Adams, also newly settled in New York. He played bass on three of Adams's late-1950s dates: Critics' Choice (recorded August 23, 1957, World Pacific), with Lee Katzman, Jimmy Rowles, and Mel Lewis; The Pepper-Knepper Quintet (recorded March 25, 1958, MetroJazz), co-led by Adams and trombonist Jimmy Knepper with Wynton Kelly and Elvin Jones; and 10 to 4 at the 5-Spot (recorded April 15, 1958, Riverside), the live document of Adams's 1958-1961 co-led quintet with Byrd, Bobby Timmons, and Elvin Jones.

Watkins made his second and final album as a leader on May 17, 1960, at Van Gelder Studio: Soulnik (New Jazz), credited to the Doug Watkins Quintet featuring Yusef Lateef on flute and oboe. On the date Watkins himself switched to cello, an instrument he had reportedly taken up only days before the session, while Herman Wright covered the bass chair; Hugh Lawson played piano and Lex Humphries drums. He also spent time in Charles Mingus's Jazz Workshop in this period, one more stop in a freelance career that by 1962 had put him on well over 500 recording dates in under a decade. On February 5, 1962, Watkins was killed in a car accident near Holbrook, Arizona, while driving to San Francisco for a gig with drummer Philly Joe Jones. He was 27.

Watkins played in the same Detroit lineage as Paul Chambers and Ray Brown: a big, centered tone, a walking line built for forward motion rather than mere timekeeping, and enough facility to move between the riff-driven Jazz Messengers sound and more exploratory small-group settings without strain. That range shows plainly across his own two leader dates, from the straight-ahead hard bop of Watkins at Large to Soulnik, where his decision to play cello rather than bass, alongside Yusef Lateef's oboe, gave the record a texture AllMusic's Scott Yanow singled out as unusual for a hard-bop session. His reputation, though, rests overwhelmingly on the sideman ledger: in a recording career of barely seven years he became one of the most heavily used bassists on the New York hard-bop scene, anchoring dates for Blue Note, Prestige, and Riverside alike before his death at 27 cut the career short.