Yes, the apostle Peter had a prominent role. Yes, perhaps the apostle Peter was the leader of the apostles (although the book of Acts records the apostle Paul and Jesus’ brother James as also having prominent leadership roles).
Oo nga't nagkaroon ng prominenteng gawain si Apostol Pedro bilang tagapanguna ng mga apostol (bagama't ipinakilala rin si Pablo at Santiago bilang mga tagapanguna na may prominenteng posisyon sa iglesya sa Aklat ng mga Gawa).