From Wikipedia
Maurice George Costello (February 22, 1877 – October 29, 1950) was an American prominent vaudeville actor of the late 1890s and early 1900s, who later played a principal role in early American films, as both a leading man, supporting player and a director.
Costello was born in Pittsburgh, Pennsylvania to Irish immigrants Ellen and Thomas Costello. He appeared in his first motion picture in 1905, in which he had the honour of appearing in the first serious film to feature the character of Sherlock Holmes in the movie Adventures of Sherlock Holmes, in which Costello played the title role. He continued to work for Vitagraph, being a member of the first motion picture stock company ever formed, playing opposite Florence Turner. Among some of his best known pictures are A Tale of Two Cities, The Man Who Couldn't Beat God and For the Honor of the Family. After an absence of some years he returned to the screen. He was married to actress Mae Costello (née Altschuk). His descendants include two daughters, actresses Dolores Costello and Helene Costello, a grandson John Drew Barrymore, and a great granddaughter Drew Barrymore. He was one of the world's first leading men in early American cinema, but like a lot of other silent screen stars, he found the transition to "talkies" extremely difficult, and his leading man status was over. However, Costello was a trouper, and continued to appear in movies, often in small roles and bit parts, right up until his death in 1950.
| 1944 | Practically Yours as Senate Stenographer (uncredited) |
| 1944 | Ölmeyen Rüyalar as Audience Member (Uncredited) |
| 1944 | A Fig Leaf for Eve as Nightclub Patron |
| 1943 | Du Barry was a Lady as Passerby |
| 1942 | The Glass Key as Card Player (uncredited) |
| 1942 | Ride 'Em Cowboy as Rodeo Spectator with Martin Manning (uncredited) |
| 1941 | Here Comes Mr. Jordan as Ringsider at Fight (uncredited) |
| 1941 | Lady from Louisiana as Edwards |
| 1941 | Yurttaş Kane as Extra (uncredited) |
| 1941 | A Man Betrayed as Club Inferno Patron (uncredited) |
| 1940 | Tin Pan Alley as (uncredited) |
| 1940 | Third Finger, Left Hand as Man at Railroad Station |
| 1940 | Yabancı Muhabir as Man (uncredited) |
| 1940 | The Sea Hawk as Man Carrying Spear |
| 1940 | All This, and Heaven Too as Extra (uncredited) |
| 1940 | Edison, the Man as Broker |
| 1940 | Johnny Apollo as Extra (uncredited) |
| 1940 | The Ghost Comes Home as Townsman at Banquet (uncredited) |
| 1940 | Alice in Movieland as Well-Wisher at Train Station (uncredited) |
| 1939 | The Roaring Twenties as Nightclub Patron (uncredited) |
| 1939 | Bay Smith Vaşington'a Gidiyor as Diggs (uncredited) |
| 1939 | Five Little Peppers And How They Grew as Hart |
| 1939 | Andy Hardy Gets Spring Fever as Man in Audience (uncredited) |
| 1939 | It's a Wonderful World as Guest (uncredited) |
| 1939 | Happily Buried as Board Member |
| 1938 | Comet Over Broadway as Actor at Dress Rehearsal (uncredited) |
| 1938 | A Man to Remember as Town Councilor (uncredited) |
| 1936 | Hollywood Boulevard as Director in Commissary |
| 1934 | Search for Beauty as Health Acres Guest (uncredited) |
| 1928 | Eagle of the Night |
| 1928 | The Wagon Show as Colonel Beldan |
| 1927 | Camille as Armand's father |
| 1927 | The Shamrock and the Rose as Father O'Brien |
| 1927 | Johnny Get Your Hair Cut as Baxter Ryan |
| 1926 | The Last Alarm as The Captain of the Fire Brigade - Tom's Father |
| 1925 | The Mad Marriage as Walter Butler |
| 1924 | The Story Without a Name as The Cripple |
| 1924 | Love of Women as Mr. Redfield |
| 1924 | Roulette as Ben Corcoran |
| 1923 | Fog Bound as Deputy Brown |
| 1923 | Man and Wife as Caleb Perkins |
| 1923 | The Glimpses of the Moon as Fred Gillow |
| 1923 | None So Blind as Russell Mortimer |
| 1916 | The Crimson Stain Mystery as Harold Stanley |
| 1916 | The Crown Prince's Double as Prince Oscar / Barry Lawrence |
| 1915 | The Heart of Jim Brice as Jim Brice |
| 1915 | The Evil Men Do as David Horton |
| 1914 | Too Much Burglar as Tom Perry |
| 1914 | The Peacemaker as Himself - Cameo Appearance |
| 1914 | The Mysterious Lodger as Ralph Brent - the Mysterious Lodger |
| 1914 | The Moonstone of Fez as Schuyler Van Norden |
| 1914 | Etta of the Footlights as Lord Wentworth |
| 1914 | Iron and Steel as John Smardon |
| 1914 | Some Steamer Scooping as Baron Lafitte |
| 1913 | Fellow Voyagers as Tom Blake |
| 1913 | The Hindoo Charm as Sir Edward Tilbury |
| 1913 | The Lonely Princess as Endicott, an American Millionaire |
| 1913 | A Princess of Bagdad as Seyn - the Cobbler |
| 1913 | The Sale of a Heart as Charles Lindgard |
| 1913 | Delayed Proposals as Jack Hardy |
| 1913 | Getting Up a Practice as Dr. Lyons |
| 1913 | What a Change of Clothes Did as John Mason |
| 1913 | The Adventure of the Ambassador's Disappearance as Lambert Chase |
| 1912 | It All Came Out in the Wash as Barry Wall |
| 1912 | When Persistency and Obstinacy Meet as Henry Ford |
| 1912 | As You Like It as Orlando |
| 1912 | Bobby's Father as Dick Ramsay - Bobby's Father |
| 1912 | The Adventure of the Italian Model as Lambert Chase - the Detective |
| 1912 | A Vitagraph Romance as Maurice Costello |
| 1912 | The Loyalty of Sylvia as Dr. Dudley Lawrence |
| 1912 | Her Grandchild as Donald Grant - the Son |
| 1912 | The Two Battles as Gordon Frazier |
| 1912 | Wanted... a Grandmother as Mr. Hale |
| 1912 | The Black Sheep as Harold Moreland - the Black Sheep's Brother |
| 1912 | Conscience as Harold Winter |
| 1912 | The Money Kings as Roy Brain |
| 1912 | On the Pupil of His Eye as Lambert Chase, Detective |
| 1912 | The Days of Terror; or, In the Reign of Terror |
| 1912 | Lulu's Doctor as Doctor John Lewis |
| 1912 | Half a Hero as Joe Godfrey |
| 1912 | The Picture Idol as Howard Hanson |
| 1912 | The Spider's Web as Trevor Lawlor - A Young Attorney |
| 1912 | Aunty's Romance as Stephen Fiske Jr. |
| 1912 | Dr. LaFleur's Theory as Dr. LaFleur |
| 1912 | The Old Silver Watch as Frank as an Adult |
| 1912 | Mrs. 'Enry 'Awkins as 'Enry Awkins |
| 1912 | The First Violin |
| 1912 | For the Honor of the Family as Guy Ryder aka Guy Denton |
| 1912 | The Meeting of the Ways as Tom - an Honest Attorney |
| 1911 | Some Good in All as Bill - a Providential Thief |
| 1911 | Auld Lang Syne as Tammas |
| 1911 | His Sister's Children as Harry Burton - the Children's Uncle |
| 1911 | For Love and Glory as Lt. Osmond |
| 1911 | She Came, She Saw, She Conquered as Herbert - Rose's Fiance |
| 1911 | The Geranium as Daniel Briton |
| 1911 | The Battle Hymn of the Republic as Jesus Christ |
| 1911 | A Quaker Mother as John Harmon - A Quaker Husband |
| 1911 | Barriers Burned Away as John Martin - First Brother |
| 1911 | The Sleep Walker as Dr. Allan Langham |
| 1911 | Proving His Love; or, The Ruse of a Beautiful Woman as Lloyd Stanwood |
| 1911 | The Changing of Silas Warner as Silas Warner's Son |
| 1911 | The Sacrifice as Nick Austin |
| 1911 | For Her Brother's Sake as Albert Black - The Brother |
| 1911 | Dead Man’s Honor as Hugh |
| 1911 | The Show Girl as Dr. Renfrew |
| 1911 | His Mother as Donald Gray |
| 1911 | Little Nemo as Himself |
| 1911 | The Inherited Taint as Herbert Warning |
| 1911 | A Tale of Two Cities as Sydney Carton |
| 1911 | The New Stenographer as The boss |
| 1911 | Water Lilies as Maurice |
| 1911 | Siren of the Sea as Fisherman |
| 1910 | How She Won Him as Arthur Lewis |
| 1910 | Rose Leaves |
| 1910 | Over the Garden Wall |
| 1910 | The Love of Chrysanthemum |
| 1910 | Richelieu; or: The Conspiracy |
| 1909 | A Midsummer Night's Dream as Lysander |
| 1909 | The Way of the Cross |
| 1909 | The Bride of Lammermoor as Edgar Ravenswood |
| 1908 | The Dancer and the King, a Romantic Story of Spain |
| 1908 | Julius Caesar, an Historical Tragedy |
| 1908 | Antony and Cléopatra as Marc Antony |
| 1908 | Leah the Forsaken |
| 1908 | Richard III |
| 1908 | Salome (The Dance of Seven Veils) as King Herod |
| 1908 | The Merchant of Venice |
Duvar