The male lead, a polo star, was played by Neil Hamilton (1899 - 1984), a handsome actor with 162 titles on IMDb from 1918 to 1971.
In his early, silent film days, he worked with stars including Mae Marsh (1894 - 1968), Lionel Barrymore (1878 - 1954) and Bessie Love (1898 - 1986), and great directors including D. W. Griffith (1975 - 1948) and William de Mille (1878 - 1955) Cecil's brother.

While most of his roles in the early talkies were good roles, and sometimes starring roles, the films were not all top caliber releases. He was in three mysteries with Warner Oland (1879 - 1938), The Studio Murder Mystery, The Mysterious Dr. Fu Manchu (both in 1929) and The Return of Dr. Fu Machu in 1930. Also in 1930 he worked with Douglas Fairbanks, Jr. (1909 - 2000) in The Dawn Patrol.
Hamilton does manage to lead the cast in the first Tarzan film that starred Johnny Weissmuller (1904 - 1984), Tarzan the Ape Man (1932), and he reprises the same role in Tarzan and His Mate (1934).
The 1940s had more films, with only a few famous titles like Father Takes a Wife (1941) starring Adolphe Menjou (1890 - 1963) and Gloria 'I'm ready for my closeup, Mr. de Mille' Swanson (1899 - 1983).

Then, finally, in 1966 he lands the TV role that really made him famous. He became Commissioner Gordon on "Batman" starring Adam West (b. 1928) and Burt Ward (b. 1945).
Hmmm, Burt Ward...Now there's a Bit Actor to write about! Anyone who would take a role as Mr. Bum in the R rated Beach Babes from Beyond (1993) is worthy of a post!