- Was a member of the Old Globe Theatre Company in San Diego.
- Made his Broadway debut as Goldberg in the 1967 production of Harold Pinter's The Birthday Party.
- Portrayed both Presidents Coolidge and Truman.
- Delivered an unscripted soliloquy during the taping of the final episode of St. Elsewhere that was ultimately included by the producers.
- Retired to a ranch in Northern California.
- Battled depression and took his own life in 1995.
- 1979, Emmy — Outstanding Supporting Actor in a Limited Series or Special: Nominee
- 1985, Emmy — Outstanding Lead Actor in a Drama Series: Nominee
- 1976, Emmy — Outstanding Single Performance by a Supporting Actor in Comedy or Drama Special: Winner
- 1986, Emmy — Outstanding Lead Actor in a Drama Series: Nominee
- 1974, Tony — Actor, Supporting or Featured (Dramatic): Winner
- 1983, Emmy — Outstanding Lead Actor in a Drama Series: Winner
- 1987, Emmy — Outstanding Lead Actor in a Drama Series: Nominee
- 1977, Emmy — Outstanding Lead Actor in a Drama or Comedy Special: Winner
- Cody Lambert — Ex-wife
- Scott Flanders — Son
- Ian Geer Flanders — Son
- Francis Flanders — Brother
- Evan Flanders — Son
- Francis Flanders — Father
- Rene Flanders — Sister
- Bernice Brown — Mother
- Suzanne — Daughter
- Ellen Geer — Ex-wife