diff --git a/gh-act b/gh-act
index 30a1363..c045f6a 100755
--- a/gh-act
+++ b/gh-act
@@ -4,6 +4,7 @@ set -euo pipefail
 SCRIPT_DIR=$(cd "$(dirname "${BASH_SOURCE[0]:-$0}")" &>/dev/null && pwd -P)
 
 GH_ACT_VERSION=0.5
+TEMPFILE_DIR=
 
 msg() {
     echo >&2 -e "${1-}"
@@ -198,7 +199,7 @@ function is_valid_user {
     return $?
 }
 
-function user_json {
+function user_json_ {
     # shellcheck disable=SC2016,SC2086
     USER_JSON_TEMPLATE='{
     "avatar_url": "{{.avatar_url}}",
@@ -229,6 +230,15 @@ function user_json {
     fi
 }
 
+function user_json {
+
+    if [ -f "${TEMPFILE_DIR}/users/$1.json" ]; then
+        cat "${TEMPFILE_DIR}/users/$1.json"
+    fi
+
+    user_json_ "$1" | tee "${TEMPFILE_DIR}/users/$1.json"
+}
+
 function issue_json {
     ISSUE_NUMBER=$1
     parts_json issue
@@ -428,7 +438,7 @@ function pull_request_event_envs() {
 
     # shellcheck disable=SC2086
     BEFORE=$(gh pr view ${PULL_REQUEST_SPEC} --json commits --jq .commits[].oid | tail -2 | head -1)
-    # shellcheck disable=SC2086
+    # shellcheck disable=SC2016
     read -r HEAD HEAD_USER <<< $(gh pr view ${PULL_REQUEST_SPEC} --json commits \
         --template '{{- $last := 0}}
 {{- range $index, $element := .commits}}{{$last = $index}}{{end}}
@@ -1167,6 +1177,7 @@ function create_event_json() {
     if [ -f "${SCRIPT_DIR}/templates/${EVENT_NAME}.json" ]; then
 
         # common
+        # shellcheck disable=SC2046
         read -r OWNER REPO \
             <<< $(gh repo view --json owner,name --template '{{ .owner.login }} {{ .name }}')
 
@@ -1270,10 +1281,10 @@ function act_post_action() {
     true
 }
 
-TEMPFILE_DIR=
 function tempdir() {
     if [ -z "${TEMPFILE_DIR}" ] || [ ! -d "${TEMPFILE_DIR}" ]; then
         TEMPFILE_DIR=$(mktemp -d gh-act.XXXXXX)
+        mkdir "${TEMPFILE_DIR}/users"
         trap 'rm -rf "${TEMPFILE_DIR}"' EXIT
     fi
 }