Tae-won Cap (born May 15, 2018 in Pyongyang, North Korea) is one of the adoptive sons of Marci and Matthew Cap.
- Father: Matthew Cap
- Mother: Marci Cap
- Brothers: Han-yong Cap, Jong-nam Cap, Sang-Ook Cap, Jong-Chul Cap, Jong-un Cap, Yong-rim Cap, Yong-il Cap, Pong-ju Cap, Min-ki Cap, Woo-sung Cap, Sun-woo Cap, Young-Chul Cap
- Sisters: Hye-rim Cap, Hye-rang Cap, Young-Hee Cap, Min-Jung Cap, Ji min Cap, Young-mi Cap, Min-seo Cap