Ronnie Cosby
- Compleanno:
- 12/22/1927
- Luogo di nascita:
- Alhambra, California, USA:
 | Birth of the Blues (1941) Jeff as a Boy |
 | The Greener Hills (1939) Miller Son |
 | The Marines Are Here (1938) Tommy Foster |
 | Wells Fargo (1937) Ramsay MacKay Jr. |
 | Madame X (1937) Peter Simonds |
 | Boulder Dam (1936) Peter Vangarick |
 | Sutter's Gold (1936) John Sutter Jr. - Age 8 |
 | Next Time We Love (1936) Kit |
 | Moonlight on the Prairie (1935) Young Boy |
 | Personal Maid's Secret (1935) Bobby Smith |
 | Shipmates Forever (1935) Little Boy (uncredited) |
 | I Live My Life (1935) Alvin (Uncredited) |
 | Oil for the Lamps of China (1935) Bunsy Wellman |
 | West Point of the Air (1935) Mike - as a Boy |
 | Straight from the Heart (1935) Crippled Boy |
 | Public Opinion (1935) Tommy Arnold |
 | Housewife (1934) Buddy Reynolds |
 | The Circus Clown (1934) Dickie Madison |
 | Now I'll Tell (1934) Tommy Doran Jr. |
 | Registered Nurse (1934) Dickie |
 | Little Men (1934) Rob Bhaer |
 | Broadway Thru a Keyhole (1933) Little Boy |
 | Ever in My Heart (1933) Teddy 'Sonny' Wilbrandt |
 | Deluge (1933) Ronny Webster |
 | Heroes for Sale (1933) Young Bill Holmes (uncredited) |
 | King of the Jungle (1933) Kaspa, aged 3 |
 | Broadway Bad (1933) Big Fella |
 | The Iron Master (1933) Little Billy Stillman as a Small Child |
 | The Man from Yesterday (1932) Baby Tony |
 | Hush Money (1931) Baby (uncredited) |
 | East Lynne (1931) William as a Child |
 | Madame X (1929) Boy at Puppet Show (uncredited) |