Yes, but "we are surrounded by a great cloud of witnesses". Praying to is different than asking someone to pray with you.
And as already said to you,
Even if they were watching this does not teach they are to be prayed to, or are interceding, but here the RC leaps to a conclusion the text does not teach, which is due to the fact that despite the multitude of prayers in Scripture, the Holy Spirit provides absolutely zero examples of any believer praying to anyone in Heaven but the Lord, or in any instructions on who to pray to in Heaven ("our Father who art in Heaven, " not "our mother," etc.), and communication btwn created beings from their respective realms required both being in either earth or heaven.
And yet as it is, Hebrews 12:1 does not necessarily teach that saints are literally watching us anymore than we are to be literally "Looking unto Jesus the author and finisher of our faith," (Hebrews 12:2) but that in we are surrounded by the examples of faith listed in the previous chapter (11), and "look" unto the Lord of Scripture, the author and finisher of our faith.