The Gospel of John gives us the most information about Thomas. In John 11:16 the Apostles were hesitant to go back to Judea, where the Jews had attempted to stone Jesus. But Thomas, showing his devotion and love for Christ, says, "Let us also go, that we may die with him." He speaks again in John 14:5. Christ had explained that He was going away to prepare a heavenly home for His followers, and that one day they will join Him there. Thomas reacts by saying, "Lord, we know not whither thou goest; and how can we know the way?" Thomas wants to follow the words of Christ, but he was afraid that without Christ, he would not know what to do. He is loyal. He knows and loves Christ.
But we don't remember this about Thomas. What we do remember, is that Thomas was a doubter, and poor Thomas really gets put through the ringer for it.
You've seen the Lord? You've seen Him risen? You've seen His hands, and touched His side, and you are certain? But I've not seen him. and I must see him. Until I've seen His wounded side, until my hands have felt His hands, I will not know, or yet believe...
Does that make Thomas any less loyal? No. Does it make Thomas any less faithful? No. Does Thomas deserve to be remembered as a doubter? Absolutely not.
I love the Gospel. It is everything to me. But I doubt. I wonder about things. I wonder about many, many things. I wonder about the role of women in the Church. I wonder about what the Church says about the LGBT community. I wonder about everything. I doubt everything. Most of these doubts resolve themselves. Most of them are resolved because I "doubted my doubts". But not all of them.
Thomas doubted. But he was not shunned. He was not made to be less than the other Apostles. He was not told to "believe or else". He was accepted. He was welcomed into the fold. There was a place for him, because Christ made a place for him.
Christ Atoned for our us. He felt the struggles and pain we feel every day. He has felt the weight of the questions and uncertainty we bear. He knows the emotional turmoil we feel coming from all directions. He knows the skepticism, the hesitation, and sometimes outright disbelief that we feel in our day to day lives.
But Christ loves us. And just as He made a place for Thomas, He made a place for you and I too.