USA
Canada
The numerous miraculous rescues by the local wonder boy Clark have aroused suspicions amongst colonials of Smallville. Interestingly, the boy has managed to downplay his acts of various heroic egresses in the past. They say he's either too fast or has a penchant for finding trouble. He was found by Martha and Jonathan Kent on the day of the Meteor Shower, and subsequently adopted. Clark's friend Lex Luthor, the only heir of Luthorcorp, has been secretly investigating grounds for Clark's outlandish valor. However, on the face of it, Clark just seems a normal boy who's slightly more secretive than usual. - IMDb
| Smallville Beginnings (rerun title) | USA |
| Smallville: As Aventuras do Superboy |  Brazil |
| Smallville: Superman the Early Years (promotional title) |  United Kingdom |
| Superman, ta hronia tis niotis (transliterated title) |  Greece |
| Tajemnice Smallville |  Poland |
| Thị Trấn Smallville |  Vietnam |
| Young Superman |  Japan |
| Σούπερμαν: Τα Χρόνια της Nιότης | Greece |
| Смолвил (Bulgarian title) |  Bulgaria |
| Смолвил |  Serbia |
| Таємниці Смолвіля |  Ukraine |
| Тайны Смолвилля |  Russia |
| ヤング・スーパーマン (Japanese title) | Japan |
| 超人前傳 |  Taiwan |
 |
Miranda Cosgrove [8] | Lana Lang - Age 5 (TV Episode: Pilot) (2001) |
 |
Jodelle Ferland [9] | Emily Dinsmore (TV Episode: Accelerate) (2003) |
 |
Ryan Kelley [16] | Ryan James (TV Episode: Stray) (2002) |
 |
Alex Ferris [12] | Young Davis Bloome (TV Episode: Eternal) (2009) |
 |
Connor Christopher Levins [9] | Max (TV Episode: Persona) (2008) |
 |
Quinn Lord [8] | Phillipe Lamont (TV Episode: Phantom) (2007) |
 |
Jakob Davies [7] | Alexander (TV Episode: Lazarus) (2010) |
 |
Colin Ford [9] | Evan Gallagher - Age 7 (TV Episode: Ageless) (2005) |
 |
Devin Douglas Drewitz [17] | Young Alden (TV Episode: Reunion) (2006) |
 |
Jake D. Smith [10] | Boy at Dam (TV Episode: Bizarro) (2007) |
 |
Jessica Amlee [7] | Little Girl (TV Episode: Jitters) (2001) |
 |
Wayne Dalglish [14] | Young Lex Luthor (TV Episode: Memoria) (2004) |
 |
Kai Kennedy | Danny's Son (TV Episode: Bulletproof) (2009) |
 |
Emily Hirst [13] | Maddie Van Horn (TV Episode: Fragile) (2006) |
 |
Cassandra Sawtell [8] | Little Girl (TV Episode: Lexmas) (2005) |
 |
Chelsea Florko [17] | Jenny (TV Episode: Wither) (2006) |
 |
Connor Widdows [16] | Bully #1 (TV Episode: Prey) (2008) |
 |
Valin Shinyei [8] | Little Boy (TV Episode: Idol) (2009) |
 |
Dawson Dunbar [8] | Playground Kid Cody (TV Episode: Kara) (2007) |
 |
Owen Best [11] | Alec Abrams / Young Jason Teague (TV Episode: Veritas) (2008) |